Introduce XcmFeesToAccount fee manager (#1234)

Combination of paritytech/polkadot#7005, its addon PR
paritytech/polkadot#7585 and its companion paritytech/cumulus#2433.

This PR introduces a new XcmFeesToAccount struct which implements the
`FeeManager` trait, and assigns this struct as the `FeeManager` in the
XCM config for all runtimes.

The struct simply deposits all fees handled by the XCM executor to a
specified account. In all runtimes, the specified account is configured
as the treasury account.

XCM __delivery__ fees are now being introduced (unless the root origin
is sending a message to a system parachain on behalf of the originating
chain).

# Note for reviewers

Most file changes are tests that had to be modified to account for the
new fees.
Main changes are in:
- cumulus/pallets/xcmp-queue/src/lib.rs <- To make it track the delivery
fees exponential factor
- polkadot/xcm/xcm-builder/src/fee_handling.rs <- Added. Has the
FeeManager implementation
- All runtime xcm_config files <- To add the FeeManager to the XCM
configuration

# Important note

After this change, instructions that create and send a new XCM (Query*,
Report*, ExportMessage, InitiateReserveWithdraw, InitiateTeleport,
DepositReserveAsset, TransferReserveAsset, LockAsset and RequestUnlock)
will require the corresponding origin account in the origin register to
pay for transport delivery fees, and the onward message will fail to be
sent if the origin account does not have the required amount. This
delivery fee is on top of what we already collect as tx fees in
pallet-xcm and XCM BuyExecution fees!

Wallet UIs that want to expose the new delivery fee can do so using the
formula:

```
delivery_fee_factor * (base_fee + encoded_msg_len * per_byte_fee)
```

where the delivery fee factor can be obtained from the corresponding
pallet based on which transport you are using (UMP, HRMP or bridges),
the base fee is a constant, the encoded message length from the message
itself and the per byte fee is the same as the configured per byte fee
for txs (i.e. `TransactionByteFee`).

---------

Co-authored-by: Branislav Kontur <bkontur@gmail.com>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Giles Cope <gilescope@gmail.com>
Co-authored-by: command-bot <>
Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

cumulus/parachains/common/Cargo.toml

@@ -40,6 +40,7 @@ xcm-builder = { package = "staging-xcm-builder", path = "../../../polkadot/xcm/x
 pallet-collator-selection = { path = "../../pallets/collator-selection", default-features = false }
 cumulus-primitives-core = { path = "../../primitives/core", default-features = false }
 cumulus-primitives-utility = { path = "../../primitives/utility", default-features = false }
+parachain-info = { path = "../pallets/parachain-info", default-features = false }
 
 [dev-dependencies]
 pallet-authorship = { path = "../../../substrate/frame/authorship", default-features = false}
@@ -61,6 +62,7 @@ std = [
 	"pallet-authorship/std",
 	"pallet-balances/std",
 	"pallet-collator-selection/std",
+	"parachain-info/std",
 	"polkadot-core-primitives/std",
 	"polkadot-primitives/std",
 	"rococo-runtime-constants/std",

cumulus/parachains/common/src/lib.rs

@@ -73,7 +73,10 @@ mod types {
 /// Common constants of parachains.
 mod constants {
 	use super::types::BlockNumber;
-	use frame_support::weights::{constants::WEIGHT_REF_TIME_PER_SECOND, Weight};
+	use frame_support::{
+		weights::{constants::WEIGHT_REF_TIME_PER_SECOND, Weight},
+		PalletId,
+	};
 	use sp_runtime::Perbill;
 	/// This determines the average expected block time that we are targeting. Blocks will be
 	/// produced at a minimum duration defined by `SLOT_DURATION`. `SLOT_DURATION` is picked up by
@@ -101,6 +104,9 @@ mod constants {
 		WEIGHT_REF_TIME_PER_SECOND.saturating_div(2),
 		polkadot_primitives::MAX_POV_SIZE as u64,
 	);
+
+	/// Treasury pallet id of the local chain, used to convert into AccountId
+	pub const TREASURY_PALLET_ID: PalletId = PalletId(*b"py/trsry");
 }
 
 /// Opaque types. These are used by the CLI to instantiate machinery that don't need to know

cumulus/parachains/common/src/xcm_config.rs

@@ -16,10 +16,9 @@
 use crate::impls::AccountIdOf;
 use cumulus_primitives_core::{IsSystem, ParaId};
 use frame_support::{
-	traits::{fungibles::Inspect, tokens::ConversionToAssetBalance, ContainsPair},
+	traits::{fungibles::Inspect, tokens::ConversionToAssetBalance, Contains, ContainsPair},
 	weights::Weight,
 };
-use log;
 use sp_runtime::traits::Get;
 use sp_std::marker::PhantomData;
 use xcm::latest::prelude::*;
@@ -80,6 +79,27 @@ impl<Location: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation>
 	}
 }
 
+pub struct RelayOrOtherSystemParachains<
+	SystemParachainMatcher: Contains<MultiLocation>,
+	Runtime: parachain_info::Config,
+> {
+	_runtime: PhantomData<(SystemParachainMatcher, Runtime)>,
+}
+impl<SystemParachainMatcher: Contains<MultiLocation>, Runtime: parachain_info::Config>
+	Contains<MultiLocation> for RelayOrOtherSystemParachains<SystemParachainMatcher, Runtime>
+{
+	fn contains(l: &MultiLocation) -> bool {
+		let self_para_id: u32 = parachain_info::Pallet::<Runtime>::get().into();
+		if let MultiLocation { parents: 0, interior: X1(Parachain(para_id)) } = l {
+			if *para_id == self_para_id {
+				return false
+			}
+		}
+		matches!(l, MultiLocation { parents: 1, interior: Here }) ||
+			SystemParachainMatcher::contains(l)
+	}
+}
+
 /// Accepts an asset if it is a concrete asset from the system (Relay Chain or system parachain).
 pub struct ConcreteAssetFromSystem<AssetLocation>(PhantomData<AssetLocation>);
 impl<AssetLocation: Get<MultiLocation>> ContainsPair<MultiAsset, MultiLocation>

cumulus/parachains/integration-tests/emulated/assets/asset-hub-rococo/Cargo.toml

@@ -25,8 +25,11 @@ polkadot-parachain-primitives = { path = "../../../../../../polkadot/parachain",
 polkadot-runtime-parachains = { path = "../../../../../../polkadot/runtime/parachains" }
 xcm = { package = "staging-xcm", path = "../../../../../../polkadot/xcm", default-features = false}
 pallet-xcm = { path = "../../../../../../polkadot/xcm/pallet-xcm", default-features = false}
+xcm-executor = { package = "staging-xcm-executor",  path = "../../../../../../polkadot/xcm/xcm-executor", default-features = false}
+rococo-runtime = { path = "../../../../../../polkadot/runtime/rococo", default-features = false }
 
 # Cumulus
+asset-test-utils = { path = "../../../../runtimes/assets/test-utils", default-features = false }
 parachains-common = { path = "../../../../common" }
 asset-hub-rococo-runtime = { path = "../../../../runtimes/assets/asset-hub-rococo" }
 
@@ -47,5 +50,7 @@ runtime-benchmarks = [
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-parachains/runtime-benchmarks",
+	"rococo-runtime/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
+	"xcm-executor/runtime-benchmarks",
 ]

cumulus/parachains/integration-tests/emulated/assets/asset-hub-rococo/src/lib.rs

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+pub use asset_test_utils::xcm_helpers;
 pub use codec::Encode;
 pub use frame_support::{
 	assert_err, assert_ok,

cumulus/parachains/integration-tests/emulated/assets/asset-hub-rococo/src/tests/reserve_transfer.rs

@@ -14,6 +14,8 @@
 // limitations under the License.
 
 use crate::*;
+use asset_hub_rococo_runtime::xcm_config::XcmConfig as AssetHubRococoXcmConfig;
+use rococo_runtime::xcm_config::XcmConfig as RococoXcmConfig;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Rococo as Chain>::RuntimeEvent;
@@ -182,10 +184,16 @@ fn limited_reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	test.set_dispatchable::<Rococo>(relay_limited_reserve_transfer_assets);
 	test.assert();
 
+	let delivery_fees = Rococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<RococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	assert_eq!(receiver_balance_before, receiver_balance_after);
 }
 
@@ -244,7 +252,13 @@ fn reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	let delivery_fees = Rococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<RococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	assert_eq!(receiver_balance_before, receiver_balance_after);
 }
 
@@ -306,7 +320,13 @@ fn limited_reserve_transfer_native_asset_from_system_para_to_para() {
 
 	let sender_balance_after = test.sender.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// TODO: Check receiver balance when Penpal runtime is improved to propery handle reserve
 	// transfers
 }
@@ -338,7 +358,13 @@ fn reserve_transfer_native_asset_from_system_para_to_para() {
 
 	let sender_balance_after = test.sender.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// TODO: Check receiver balance when Penpal runtime is improved to propery handle reserve
 	// transfers
 }

cumulus/parachains/integration-tests/emulated/assets/asset-hub-rococo/src/tests/teleport.rs

@@ -14,6 +14,8 @@
 // limitations under the License.
 
 use crate::*;
+use asset_hub_rococo_runtime::xcm_config::XcmConfig as AssetHubRococoXcmConfig;
+use rococo_runtime::xcm_config::XcmConfig as RococoXcmConfig;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Rococo as Chain>::RuntimeEvent;
@@ -171,11 +173,17 @@ fn limited_teleport_native_assets_from_relay_to_system_para_works() {
 	test.set_dispatchable::<Rococo>(relay_limited_teleport_assets);
 	test.assert();
 
+	let delivery_fees = Rococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<RococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -212,8 +220,14 @@ fn limited_teleport_native_assets_back_from_system_para_to_relay_works() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -247,8 +261,14 @@ fn limited_teleport_native_assets_from_system_para_to_relay_fails() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance does not change
 	assert_eq!(receiver_balance_after, receiver_balance_before);
 }
@@ -274,11 +294,17 @@ fn teleport_native_assets_from_relay_to_system_para_works() {
 	test.set_dispatchable::<Rococo>(relay_teleport_assets);
 	test.assert();
 
+	let delivery_fees = Rococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<RococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -315,8 +341,14 @@ fn teleport_native_assets_back_from_system_para_to_relay_works() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -347,11 +379,17 @@ fn teleport_native_assets_from_system_para_to_relay_fails() {
 	test.set_dispatchable::<AssetHubRococo>(system_para_teleport_assets);
 	test.assert();
 
+	let delivery_fees = AssetHubRococo::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubRococoXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance does not change
 	assert_eq!(receiver_balance_after, receiver_balance_before);
 }
@@ -359,11 +397,12 @@ fn teleport_native_assets_from_system_para_to_relay_fails() {
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = ASSET_HUB_ROCOCO_ED * 100;
-	let native_asset: VersionedMultiAssets = (Parent, amount).into();
+	let native_asset: MultiAssets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
-		AssetHubRococo,        // Origin
-		vec![BridgeHubRococo], // Destinations
+		AssetHubRococo,          // Origin
+		AssetHubRococoXcmConfig, // XCM Configuration
+		vec![BridgeHubRococo],   // Destinations
 		(native_asset, amount)
 	);
 }

cumulus/parachains/integration-tests/emulated/assets/asset-hub-westend/Cargo.toml

@@ -30,10 +30,13 @@ xcm = { package = "staging-xcm", path = "../../../../../../polkadot/xcm", defaul
 xcm-builder = { package = "staging-xcm-builder",  path = "../../../../../../polkadot/xcm/xcm-builder", default-features = false}
 xcm-executor = { package = "staging-xcm-executor",  path = "../../../../../../polkadot/xcm/xcm-executor", default-features = false}
 pallet-xcm = { path = "../../../../../../polkadot/xcm/pallet-xcm", default-features = false}
+westend-runtime = { path = "../../../../../../polkadot/runtime/westend", default-features = false }
+westend-runtime-constants = { path = "../../../../../../polkadot/runtime/westend/constants", default-features = false }
 
 # Cumulus
 parachains-common = { path = "../../../../common" }
 asset-hub-westend-runtime = { path = "../../../../runtimes/assets/asset-hub-westend" }
+asset-test-utils = { path = "../../../../runtimes/assets/test-utils", default-features = false }
 cumulus-pallet-dmp-queue = { default-features = false, path = "../../../../../pallets/dmp-queue" }
 cumulus-pallet-parachain-system = { default-features = false, path = "../../../../../pallets/parachain-system" }
 
@@ -59,6 +62,7 @@ runtime-benchmarks = [
 	"polkadot-runtime-common/runtime-benchmarks",
 	"polkadot-runtime-parachains/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
+	"westend-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
 ]

cumulus/parachains/integration-tests/emulated/assets/asset-hub-westend/src/lib.rs

@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+pub use asset_test_utils::xcm_helpers;
 pub use codec::Encode;
 pub use frame_support::{
 	assert_err, assert_ok,

cumulus/parachains/integration-tests/emulated/assets/asset-hub-westend/src/tests/reserve_transfer.rs

@@ -14,6 +14,8 @@
 // limitations under the License.
 
 use crate::*;
+use asset_hub_westend_runtime::xcm_config::XcmConfig;
+use westend_runtime::xcm_config::XcmConfig as WestendXcmConfig;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Westend as Chain>::RuntimeEvent;
@@ -179,10 +181,16 @@ fn limited_reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	test.set_dispatchable::<Westend>(relay_limited_reserve_transfer_assets);
 	test.assert();
 
+	let delivery_fees = Westend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<WestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	assert_eq!(receiver_balance_before, receiver_balance_after);
 }
 
@@ -238,10 +246,16 @@ fn reserve_transfer_native_asset_from_relay_to_system_para_fails() {
 	test.set_dispatchable::<Westend>(relay_reserve_transfer_assets);
 	test.assert();
 
+	let delivery_fees = Westend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<WestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	assert_eq!(receiver_balance_before, receiver_balance_after);
 }
 
@@ -303,7 +317,17 @@ fn limited_reserve_transfer_native_asset_from_system_para_to_para() {
 
 	let sender_balance_after = test.sender.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<<XcmConfig as xcm_executor::Config>::XcmSender>(
+			test.args.assets.clone(),
+			0,
+			test.args.weight_limit,
+			test.args.beneficiary,
+			test.args.dest,
+		)
+	});
+
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// TODO: Check receiver balance when Penpal runtime is improved to propery handle reserve
 	// transfers
 }
@@ -335,7 +359,17 @@ fn reserve_transfer_native_asset_from_system_para_to_para() {
 
 	let sender_balance_after = test.sender.balance;
 
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<<XcmConfig as xcm_executor::Config>::XcmSender>(
+			test.args.assets.clone(),
+			0,
+			test.args.weight_limit,
+			test.args.beneficiary,
+			test.args.dest,
+		)
+	});
+
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// TODO: Check receiver balance when Penpal runtime is improved to propery handle reserve
 	// transfers
 }

cumulus/parachains/integration-tests/emulated/assets/asset-hub-westend/src/tests/teleport.rs

@@ -16,6 +16,8 @@
 #![allow(dead_code)] // <https://github.com/paritytech/cumulus/issues/3027>
 
 use crate::*;
+use asset_hub_westend_runtime::xcm_config::XcmConfig as AssetHubWestendXcmConfig;
+use westend_runtime::xcm_config::XcmConfig as WestendXcmConfig;
 
 fn relay_origin_assertions(t: RelayToSystemParaTest) {
 	type RuntimeEvent = <Westend as Chain>::RuntimeEvent;
@@ -173,11 +175,17 @@ fn limited_teleport_native_assets_from_relay_to_system_para_works() {
 	test.set_dispatchable::<Westend>(relay_limited_teleport_assets);
 	test.assert();
 
+	let delivery_fees = Westend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<WestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -214,8 +222,14 @@ fn limited_teleport_native_assets_back_from_system_para_to_relay_works() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubWestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -249,8 +263,14 @@ fn limited_teleport_native_assets_from_system_para_to_relay_fails() {
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubWestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance does not change
 	assert_eq!(receiver_balance_after, receiver_balance_before);
 }
@@ -276,11 +296,17 @@ fn teleport_native_assets_from_relay_to_system_para_works() {
 	test.set_dispatchable::<Westend>(relay_teleport_assets);
 	test.assert();
 
+	let delivery_fees = Westend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<WestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -314,11 +340,17 @@ fn teleport_native_assets_back_from_system_para_to_relay_works() {
 	test.set_dispatchable::<AssetHubWestend>(system_para_teleport_assets);
 	test.assert();
 
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubWestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance is increased
 	assert!(receiver_balance_after > receiver_balance_before);
 }
@@ -349,11 +381,17 @@ fn teleport_native_assets_from_system_para_to_relay_fails() {
 	test.set_dispatchable::<AssetHubWestend>(system_para_teleport_assets);
 	test.assert();
 
+	let delivery_fees = AssetHubWestend::execute_with(|| {
+		xcm_helpers::transfer_assets_delivery_fees::<
+			<AssetHubWestendXcmConfig as xcm_executor::Config>::XcmSender,
+		>(test.args.assets.clone(), 0, test.args.weight_limit, test.args.beneficiary, test.args.dest)
+	});
+
 	let sender_balance_after = test.sender.balance;
 	let receiver_balance_after = test.receiver.balance;
 
 	// Sender's balance is reduced
-	assert_eq!(sender_balance_before - amount_to_send, sender_balance_after);
+	assert_eq!(sender_balance_before - amount_to_send - delivery_fees, sender_balance_after);
 	// Receiver's balance does not change
 	assert_eq!(receiver_balance_after, receiver_balance_before);
 }

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-rococo/Cargo.toml

@@ -19,13 +19,16 @@ polkadot-parachain-primitives = { path = "../../../../../../polkadot/parachain",
 polkadot-runtime-parachains = { path = "../../../../../../polkadot/runtime/parachains" }
 xcm = { package = "staging-xcm", path = "../../../../../../polkadot/xcm", default-features = false}
 pallet-xcm = { path = "../../../../../../polkadot/xcm/pallet-xcm", default-features = false}
+xcm-executor = { package = "staging-xcm-executor",  path = "../../../../../../polkadot/xcm/xcm-executor", default-features = false}
 
 # Cumulus
+asset-test-utils = { path = "../../../../../parachains/runtimes/assets/test-utils", default-features = false }
 parachains-common = { path = "../../../../common" }
 cumulus-pallet-xcmp-queue = { path = "../../../../../pallets/xcmp-queue", default-features = false}
 cumulus-pallet-dmp-queue = { path = "../../../../../pallets/dmp-queue", default-features = false}
 pallet-bridge-messages = { path = "../../../../../../bridges/modules/messages", default-features = false}
 bp-messages = { path = "../../../../../../bridges/primitives/messages", default-features = false}
+bridge-hub-rococo-runtime = { path = "../../../../../parachains/runtimes/bridge-hubs/bridge-hub-rococo", default-features = false }
 
 # Local
 xcm-emulator = { path = "../../../../../xcm/xcm-emulator", default-features = false}

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-rococo/src/tests/teleport.rs

@@ -14,14 +14,16 @@
 // limitations under the License.
 
 use crate::*;
+use bridge_hub_rococo_runtime::xcm_config::XcmConfig;
 
 #[test]
 fn teleport_to_other_system_parachains_works() {
 	let amount = BRIDGE_HUB_ROCOCO_ED * 100;
-	let native_asset: VersionedMultiAssets = (Parent, amount).into();
+	let native_asset: MultiAssets = (Parent, amount).into();
 
 	test_parachain_is_trusted_teleporter!(
 		BridgeHubRococo,      // Origin
+		XcmConfig,            // XCM configuration
 		vec![AssetHubRococo], // Destinations
 		(native_asset, amount)
 	);

cumulus/parachains/integration-tests/emulated/common/src/macros.rs

@@ -15,7 +15,7 @@
 
 #[macro_export]
 macro_rules! test_parachain_is_trusted_teleporter {
-	( $sender_para:ty, vec![$( $receiver_para:ty ),+], ($assets:expr, $amount:expr) ) => {
+	( $sender_para:ty, $sender_xcm_config:ty, vec![$( $receiver_para:ty ),+], ($assets:expr, $amount:expr) ) => {
 		$crate::paste::paste! {
 			// init Origin variables
 			let sender = [<$sender_para Sender>]::get();
@@ -32,19 +32,22 @@ macro_rules! test_parachain_is_trusted_teleporter {
 					let para_receiver_balance_before =
 						<$receiver_para as $crate::Chain>::account_data_of(receiver.clone()).free;
 					let para_destination =
-						<$sender_para>::sibling_location_of(<$receiver_para>::para_id()).into();
-					let beneficiary =
+						<$sender_para>::sibling_location_of(<$receiver_para>::para_id());
+					let beneficiary: MultiLocation =
 						$crate::AccountId32 { network: None, id: receiver.clone().into() }.into();
 
+					dbg!(&origin);
+					dbg!(&para_destination);
+
 					// Send XCM message from Origin Parachain
 					// We are only testing the limited teleport version, which should be ok since success will
 					// depend only on a proper `XcmConfig` at destination.
 					<$sender_para>::execute_with(|| {
 						assert_ok!(<$sender_para as [<$sender_para Pallet>]>::PolkadotXcm::limited_teleport_assets(
 							origin.clone(),
-							bx!(para_destination),
-							bx!(beneficiary),
-							bx!($assets.clone()),
+							bx!(para_destination.into()),
+							bx!(beneficiary.into()),
+							bx!($assets.clone().into()),
 							fee_asset_item,
 							weight_limit.clone(),
 						));
@@ -89,8 +92,13 @@ macro_rules! test_parachain_is_trusted_teleporter {
 						<$sender_para as $crate::Chain>::account_data_of(sender.clone()).free;
 					let para_receiver_balance_after =
 						<$receiver_para as $crate::Chain>::account_data_of(receiver.clone()).free;
+					let delivery_fees = <$sender_para>::execute_with(|| {
+						asset_test_utils::xcm_helpers::transfer_assets_delivery_fees::<
+							<$sender_xcm_config as xcm_executor::Config>::XcmSender,
+						>($assets.clone(), fee_asset_item, weight_limit.clone(), beneficiary, para_destination)
+					});
 
-					assert_eq!(para_sender_balance_before - $amount, para_sender_balance_after);
+					assert_eq!(para_sender_balance_before - $amount - delivery_fees, para_sender_balance_after);
 					assert!(para_receiver_balance_after > para_receiver_balance_before);
 
 					// Update sender balance

cumulus/parachains/integration-tests/emulated/common/src/xcm_helpers.rs

@@ -14,14 +14,7 @@
 // limitations under the License.
 
 use parachains_common::AccountId;
-use xcm::{
-	prelude::{
-		AccountId32, All, BuyExecution, DepositAsset, MultiAsset, MultiAssets, MultiLocation,
-		OriginKind, RefundSurplus, Transact, UnpaidExecution, VersionedXcm, Weight, WeightLimit,
-		WithdrawAsset, Xcm, X1,
-	},
-	DoubleEncoded,
-};
+use xcm::{prelude::*, DoubleEncoded};
 
 /// Helper method to build a XCM with a `Transact` instruction and paying for its execution
 pub fn xcm_transact_paid_execution(

cumulus/parachains/runtimes/assets/asset-hub-kusama/src/lib.rs

@@ -34,6 +34,8 @@ use assets_common::{
 	AssetIdForTrustBackedAssetsConvert, MultiLocationForAssetId,
 };
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -88,7 +90,7 @@ pub use sp_runtime::BuildStorage;
 // Polkadot imports
 use pallet_xcm::{EnsureXcm, IsVoiceOfBody};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 use crate::xcm_config::{
@@ -645,7 +647,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	>;
 	type ControllerOriginConverter = xcm_config::XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -1211,9 +1213,21 @@ impl_runtime_apis! {
 			use xcm_config::{KsmLocation, MaxAssetsIntoHolding};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					KsmLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(KsmLocation::get())
 				}
@@ -1269,6 +1283,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/assets/asset-hub-kusama/src/xcm_config.rs

@@ -16,9 +16,9 @@
 use super::{
 	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, ParachainInfo,
 	ParachainSystem, PolkadotXcm, PoolAssets, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
-	TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
+	TransactionByteFee, TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
 };
-use crate::ForeignAssets;
+use crate::{ForeignAssets, CENTS};
 use assets_common::{
 	local_and_foreign_assets::MatchesLocalAndForeignAssetsMultiLocation,
 	matching::{FromSiblingParachain, IsForeignConcreteAsset},
@@ -34,6 +34,7 @@ use parachains_common::{
 	xcm_config::{AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem},
 };
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
 use sp_runtime::traits::ConvertInto;
 use xcm::latest::prelude::*;
 use xcm_builder::{
@@ -532,11 +533,21 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(KsmLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/assets/asset-hub-polkadot/src/lib.rs

@@ -66,6 +66,8 @@ use assets_common::{
 	foreign_creators::ForeignCreators, matching::FromSiblingParachain, MultiLocationForAssetId,
 };
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -118,7 +120,7 @@ pub use sp_runtime::BuildStorage;
 // Polkadot imports
 use pallet_xcm::{EnsureXcm, IsVoiceOfBody};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 use crate::xcm_config::ForeignCreatorsSovereignAccountOf;
@@ -581,7 +583,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 		EnsureXcm<IsVoiceOfBody<FellowshipLocation, FellowsBodyId>>,
 	>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -1090,9 +1092,21 @@ impl_runtime_apis! {
 			use xcm_config::{DotLocation, MaxAssetsIntoHolding};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					xcm_config::DotLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(DotLocation::get())
 				}
@@ -1148,6 +1162,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/assets/asset-hub-polkadot/src/xcm_config.rs

@@ -16,7 +16,7 @@
 use super::{
 	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, ForeignAssets,
 	ParachainInfo, ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
-	TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
+	TransactionByteFee, TrustBackedAssetsInstance, WeightToFee, XcmpQueue, CENTS,
 };
 use assets_common::matching::{FromSiblingParachain, IsForeignConcreteAsset};
 use frame_support::{
@@ -30,6 +30,7 @@ use parachains_common::{
 	xcm_config::{AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem},
 };
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
 use sp_runtime::traits::ConvertInto;
 use xcm::latest::prelude::*;
 use xcm_builder::{
@@ -456,11 +457,21 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(DotLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml

@@ -55,6 +55,7 @@ sp-weights = { path = "../../../../../substrate/primitives/weights", default-fea
 primitive-types = { version = "0.12.1", default-features = false, features = ["codec", "scale-info", "num-traits"] }
 
 # Polkadot
+rococo-runtime = { path = "../../../../../polkadot/runtime/rococo", default-features = false }
 rococo-runtime-constants = { path = "../../../../../polkadot/runtime/rococo/constants", default-features = false}
 pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false}
 pallet-xcm-benchmarks = { path = "../../../../../polkadot/xcm/pallet-xcm-benchmarks", default-features = false, optional = true }
@@ -130,6 +131,7 @@ runtime-benchmarks = [
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
+	"rococo-runtime/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
@@ -165,6 +167,7 @@ try-runtime = [
 	"pallet-xcm/try-runtime",
 	"parachain-info/try-runtime",
 	"polkadot-runtime-common/try-runtime",
+	"rococo-runtime/try-runtime",
 	"sp-runtime/try-runtime",
 ]
 std = [
@@ -218,6 +221,7 @@ std = [
 	"polkadot-parachain-primitives/std",
 	"polkadot-runtime-common/std",
 	"rococo-runtime-constants/std",
+	"rococo-runtime/std",
 	"scale-info/std",
 	"sp-api/std",
 	"sp-block-builder/std",

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs

@@ -93,7 +93,7 @@ pub use sp_runtime::BuildStorage;
 // Polkadot imports
 use pallet_xcm::{EnsureXcm, IsVoiceOfBody};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 use crate::xcm_config::{
@@ -636,6 +636,20 @@ impl parachain_info::Config for Runtime {}
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(xcm_config::TokenLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForSiblingParachainDelivery = polkadot_runtime_common::xcm_sender::ExponentialPrice<
+	FeeAssetId,
+	BaseDeliveryFee,
+	TransactionByteFee,
+	XcmpQueue,
+>;
+
 impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
@@ -645,7 +659,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EnsureRoot<AccountId>;
 	type ControllerOriginConverter = xcm_config::XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = PriceForSiblingParachainDelivery;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -1315,9 +1329,21 @@ impl_runtime_apis! {
 			use xcm_config::{TokenLocation, MaxAssetsIntoHolding};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					TokenLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
@@ -1373,6 +1399,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/xcm_config.rs

@@ -14,10 +14,11 @@
 // limitations under the License.
 
 use super::{
-	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, ForeignAssets,
-	ForeignAssetsInstance, ParachainInfo, ParachainSystem, PolkadotXcm, PoolAssets, Runtime,
-	RuntimeCall, RuntimeEvent, RuntimeFlavor, RuntimeOrigin, ToRococoXcmRouter, ToWococoXcmRouter,
-	TransactionByteFee, TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
+	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, BaseDeliveryFee,
+	FeeAssetId, ForeignAssets, ForeignAssetsInstance, ParachainInfo, ParachainSystem, PolkadotXcm,
+	PoolAssets, Runtime, RuntimeCall, RuntimeEvent, RuntimeFlavor, RuntimeOrigin,
+	ToRococoXcmRouter, ToWococoXcmRouter, TransactionByteFee, TrustBackedAssetsInstance,
+	WeightToFee, XcmpQueue,
 };
 use assets_common::{
 	local_and_foreign_assets::MatchesLocalAndForeignAssetsMultiLocation,
@@ -31,10 +32,17 @@ use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
 use parachains_common::{
 	impls::ToStakingPot,
-	xcm_config::{AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem},
+	xcm_config::{
+		AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem,
+		RelayOrOtherSystemParachains,
+	},
+	TREASURY_PALLET_ID,
 };
 use polkadot_parachain_primitives::primitives::Sibling;
-use sp_runtime::traits::ConvertInto;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
+use rococo_runtime::Treasury as RococoTreasury;
+use rococo_runtime_constants::system_parachain::SystemParachains;
+use sp_runtime::traits::{AccountIdConversion, ConvertInto};
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllAssets, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -46,6 +54,7 @@ use xcm_builder::{
 	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
 	SovereignSignedViaLocation, StartsWith, StartsWithExplicitGlobalConsensus, TakeWeightCredit,
 	TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
+	XcmFeesToAccount,
 };
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
@@ -67,6 +76,7 @@ parameter_types! {
 		PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
 	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
 	pub const GovernanceLocation: MultiLocation = MultiLocation::parent();
+	pub TreasuryAccount: Option<AccountId> = Some(TREASURY_PALLET_ID.into_account_truncating());
 }
 
 /// Adapter for resolving `NetworkId` based on `pub storage Flavor: RuntimeFlavor`.
@@ -521,6 +531,23 @@ pub type ForeignAssetFeeAsExistentialDepositMultiplierFeeCharger =
 		ForeignAssetsInstance,
 	>;
 
+parameter_types! {
+	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(<RococoTreasury as PalletInfoAccess>::index() as u8)).into();
+}
+
+pub struct RelayTreasury;
+impl Contains<MultiLocation> for RelayTreasury {
+	fn contains(location: &MultiLocation) -> bool {
+		let relay_treasury_location = RelayTreasuryLocation::get();
+		*location == relay_treasury_location
+	}
+}
+
+/// Locations that will not be charged fees in the executor,
+/// either execution or delivery.
+/// We only waive fees for system functions, which these locations represent.
+pub type WaivedLocations = (RelayOrOtherSystemParachains<SystemParachains, Runtime>, RelayTreasury);
+
 /// Cases where a remote origin is accepted as trusted Teleporter for a given asset:
 ///
 /// - ROC with the parent Relay Chain and sibling system parachains; and
@@ -588,8 +615,7 @@ impl xcm_executor::Config for XcmConfig {
 	type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
 	type AssetLocker = ();
 	type AssetExchanger = ();
-	// TODO:check-parameter: change and assert in tests when (https://github.com/paritytech/polkadot-sdk/pull/1234) merged
-	type FeeManager = ();
+	type FeeManager = XcmFeesToAccount<Self, WaivedLocations, AccountId, TreasuryAccount>;
 	type MessageExporter = ();
 	type UniversalAliases =
 		(bridging::to_wococo::UniversalAliases, bridging::to_rococo::UniversalAliases);
@@ -602,10 +628,13 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// For routing XCM messages which do not cross local consensus boundary.
 type LocalXcmRouter = (
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 );

cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml

@@ -60,6 +60,7 @@ polkadot-core-primitives = { path = "../../../../../polkadot/core-primitives", d
 polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false}
 polkadot-runtime-common = { path = "../../../../../polkadot/runtime/common", default-features = false}
 westend-runtime-constants = { path = "../../../../../polkadot/runtime/westend/constants", default-features = false}
+westend-runtime = { path = "../../../../../polkadot/runtime/westend", default-features = false }
 xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false}
 xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false}
 xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false}
@@ -116,6 +117,7 @@ runtime-benchmarks = [
 	"polkadot-parachain-primitives/runtime-benchmarks",
 	"polkadot-runtime-common/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
+	"westend-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
 ]
@@ -149,6 +151,7 @@ try-runtime = [
 	"parachain-info/try-runtime",
 	"polkadot-runtime-common/try-runtime",
 	"sp-runtime/try-runtime",
+	"westend-runtime/try-runtime",
 ]
 std = [
 	"assets-common/std",
@@ -210,6 +213,7 @@ std = [
 	"sp-version/std",
 	"substrate-wasm-builder",
 	"westend-runtime-constants/std",
+	"westend-runtime/std",
 	"xcm-builder/std",
 	"xcm-executor/std",
 	"xcm/std",

cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs

@@ -88,6 +88,7 @@ use assets_common::{
 	foreign_creators::ForeignCreators, matching::FromSiblingParachain, MultiLocationForAssetId,
 };
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 use crate::xcm_config::ForeignCreatorsSovereignAccountOf;
@@ -604,6 +605,20 @@ impl parachain_info::Config for Runtime {}
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(xcm_config::WestendLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForSiblingParachainDelivery = polkadot_runtime_common::xcm_sender::ExponentialPrice<
+	FeeAssetId,
+	BaseDeliveryFee,
+	TransactionByteFee,
+	XcmpQueue,
+>;
+
 impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
@@ -613,7 +628,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EnsureRoot<AccountId>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = PriceForSiblingParachainDelivery;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -1262,9 +1277,21 @@ impl_runtime_apis! {
 			use xcm_config::{MaxAssetsIntoHolding, WestendLocation};
 			use pallet_xcm_benchmarks::asset_instance_from;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					WestendLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(WestendLocation::get())
 				}
@@ -1320,6 +1347,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {
@@ -1421,7 +1449,6 @@ pub mod migrations {
 	};
 	use parachains_common::impls::AccountIdOf;
 	use sp_runtime::{traits::StaticLookup, Saturating};
-	use xcm::latest::prelude::*;
 
 	/// Temporary migration because of bug with native asset, it can be removed once applied on
 	/// `AssetHubWestend`. Migrates pools with `MultiLocation { parents: 0, interior: Here }` to

cumulus/parachains/runtimes/assets/asset-hub-westend/src/xcm_config.rs

@@ -14,9 +14,10 @@
 // limitations under the License.
 
 use super::{
-	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, ParachainInfo,
-	ParachainSystem, PolkadotXcm, PoolAssets, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
-	TrustBackedAssetsInstance, WeightToFee, XcmpQueue,
+	AccountId, AllPalletsWithSystem, Assets, Authorship, Balance, Balances, BaseDeliveryFee,
+	FeeAssetId, ParachainInfo, ParachainSystem, PolkadotXcm, PoolAssets, Runtime, RuntimeCall,
+	RuntimeEvent, RuntimeOrigin, TransactionByteFee, TrustBackedAssetsInstance, WeightToFee,
+	XcmpQueue,
 };
 use crate::ForeignAssets;
 use assets_common::{
@@ -31,10 +32,17 @@ use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
 use parachains_common::{
 	impls::ToStakingPot,
-	xcm_config::{AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem},
+	xcm_config::{
+		AssetFeeAsExistentialDepositMultiplier, ConcreteAssetFromSystem,
+		RelayOrOtherSystemParachains,
+	},
+	TREASURY_PALLET_ID,
 };
 use polkadot_parachain_primitives::primitives::Sibling;
-use sp_runtime::traits::ConvertInto;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
+use sp_runtime::traits::{AccountIdConversion, ConvertInto};
+use westend_runtime::Treasury as WestendTreasury;
+use westend_runtime_constants::system_parachain;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -45,6 +53,7 @@ use xcm_builder::{
 	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
 	SovereignSignedViaLocation, StartsWith, StartsWithExplicitGlobalConsensus, TakeWeightCredit,
 	TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
+	XcmFeesToAccount,
 };
 use xcm_executor::{traits::WithOriginFilter, XcmExecutor};
 
@@ -65,6 +74,7 @@ parameter_types! {
 	pub PoolAssetsPalletLocation: MultiLocation =
 		PalletInstance(<PoolAssets as PalletInfoAccess>::index() as u8).into();
 	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
+	pub TreasuryAccount: Option<AccountId> = Some(TREASURY_PALLET_ID.into_account_truncating());
 }
 
 /// Type for specifying how a `MultiLocation` can be converted into an `AccountId`. This is used
@@ -482,6 +492,36 @@ pub type AssetFeeAsExistentialDepositMultiplierFeeCharger = AssetFeeAsExistentia
 	TrustBackedAssetsInstance,
 >;
 
+match_types! {
+	pub type SystemParachains: impl Contains<MultiLocation> = {
+		MultiLocation {
+			parents: 1,
+			interior: X1(Parachain(
+				system_parachain::ASSET_HUB_ID |
+				system_parachain::COLLECTIVES_ID |
+				system_parachain::BRIDGE_HUB_ID
+			)),
+		}
+	};
+}
+
+parameter_types! {
+	pub RelayTreasuryLocation: MultiLocation = (Parent, PalletInstance(<WestendTreasury as PalletInfoAccess>::index() as u8)).into();
+}
+
+pub struct RelayTreasury;
+impl Contains<MultiLocation> for RelayTreasury {
+	fn contains(location: &MultiLocation) -> bool {
+		let relay_treasury_location = RelayTreasuryLocation::get();
+		*location == relay_treasury_location
+	}
+}
+
+/// Locations that will not be charged fees in the executor,
+/// either execution or delivery.
+/// We only waive fees for system functions, which these locations represent.
+pub type WaivedLocations = (RelayOrOtherSystemParachains<SystemParachains, Runtime>, RelayTreasury);
+
 /// Cases where a remote origin is accepted as trusted Teleporter for a given asset:
 ///
 /// - WND with the parent Relay Chain and sibling system parachains; and
@@ -531,7 +571,7 @@ impl xcm_executor::Config for XcmConfig {
 	type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
 	type AssetLocker = ();
 	type AssetExchanger = ();
-	type FeeManager = ();
+	type FeeManager = XcmFeesToAccount<Self, WaivedLocations, AccountId, TreasuryAccount>;
 	type MessageExporter = ();
 	type UniversalAliases = Nothing;
 	type CallDispatcher = WithOriginFilter<SafeCallFilter>;
@@ -542,11 +582,14 @@ impl xcm_executor::Config for XcmConfig {
 /// Local origins on this chain are allowed to dispatch XCM sends/executions.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/assets/test-utils/Cargo.toml

@@ -34,11 +34,11 @@ parachain-info = { path = "../../../pallets/parachain-info", default-features =
 parachains-runtimes-test-utils = { path = "../../test-utils", default-features = false }
 
 # Polkadot
-xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false}
-xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false}
-xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false}
-pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false}
-polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false}
+xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false }
+xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false }
+xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false }
+pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false }
+polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false }
 
 # Bridges
 pallet-xcm-bridge-hub-router = { path = "../../../../../bridges/modules/xcm-bridge-hub-router", default-features = false }

cumulus/parachains/runtimes/assets/test-utils/src/lib.rs

@@ -18,4 +18,5 @@
 
 pub mod test_cases;
 pub mod test_cases_over_bridge;
+pub mod xcm_helpers;
 pub use parachains_runtimes_test_utils::*;

cumulus/parachains/runtimes/assets/test-utils/src/test_cases.rs

@@ -15,10 +15,13 @@
 
 //! Module contains predefined test-case scenarios for `Runtime` with various assets.
 
+use super::xcm_helpers;
 use codec::Encode;
 use frame_support::{
 	assert_noop, assert_ok,
-	traits::{fungibles::InspectEnumerable, Get, OnFinalize, OnInitialize, OriginTrait},
+	traits::{
+		fungible::Mutate, fungibles::InspectEnumerable, Get, OnFinalize, OnInitialize, OriginTrait,
+	},
 	weights::Weight,
 };
 use frame_system::pallet_prelude::BlockNumberFor;
@@ -175,6 +178,21 @@ pub fn teleports_for_native_asset_works<
 						target_account_balance_before_teleport - existential_deposit
 				);
 
+				// Mint funds into account to ensure it has enough balance to pay delivery fees
+				let delivery_fees =
+					xcm_helpers::transfer_assets_delivery_fees::<XcmConfig::XcmSender>(
+						(native_asset_id, native_asset_to_teleport_away.into()).into(),
+						0,
+						Unlimited,
+						dest_beneficiary,
+						dest,
+					);
+				<pallet_balances::Pallet<Runtime>>::mint_into(
+					&target_account,
+					delivery_fees.into(),
+				)
+				.unwrap();
+
 				assert_ok!(RuntimeHelper::<Runtime>::do_teleport_assets::<HrmpChannelOpener>(
 					RuntimeHelper::<Runtime>::origin_of(target_account.clone()),
 					dest,
@@ -184,6 +202,7 @@ pub fn teleports_for_native_asset_works<
 					included_head.clone(),
 					&alice,
 				));
+
 				// check balances
 				assert_eq!(
 					<pallet_balances::Pallet<Runtime>>::free_balance(&target_account),
@@ -232,10 +251,21 @@ pub fn teleports_for_native_asset_works<
 					&alice,
 				));
 
+				let delivery_fees =
+					xcm_helpers::transfer_assets_delivery_fees::<XcmConfig::XcmSender>(
+						(native_asset_id, native_asset_to_teleport_away.into()).into(),
+						0,
+						Unlimited,
+						dest_beneficiary,
+						dest,
+					);
+
 				// check balances
 				assert_eq!(
 					<pallet_balances::Pallet<Runtime>>::free_balance(&target_account),
-					target_account_balance_before_teleport - native_asset_to_teleport_away
+					target_account_balance_before_teleport -
+						native_asset_to_teleport_away -
+						delivery_fees.into()
 				);
 				assert_eq!(
 					<pallet_balances::Pallet<Runtime>>::free_balance(&CheckingAccount::get()),
@@ -370,7 +400,7 @@ pub fn teleports_for_foreign_assets_works<
 		fun: Fungible(buy_execution_fee_amount),
 	};
 
-	let teleported_foreign_asset_amount = 10000000000000;
+	let teleported_foreign_asset_amount = 10_000_000_000_000;
 	let runtime_para_id = 1000;
 	ExtBuilder::<Runtime>::default()
 		.with_collators(collator_session_keys.collators())
@@ -400,11 +430,11 @@ pub fn teleports_for_foreign_assets_works<
 				<pallet_balances::Pallet<Runtime>>::free_balance(&target_account),
 				existential_deposit
 			);
+			// check `CheckingAccount` before
 			assert_eq!(
 				<pallet_balances::Pallet<Runtime>>::free_balance(&CheckingAccount::get()),
 				existential_deposit
 			);
-			// check `CheckingAccount` before
 			assert_eq!(
 				<pallet_assets::Pallet<Runtime, ForeignAssetsPalletInstance>>::balance(
 					foreign_asset_id_multilocation.into(),
@@ -540,6 +570,21 @@ pub fn teleports_for_foreign_assets_works<
 						.into()
 				);
 
+				// Make sure the target account has enough native asset to pay for delivery fees
+				let delivery_fees =
+					xcm_helpers::transfer_assets_delivery_fees::<XcmConfig::XcmSender>(
+						(foreign_asset_id_multilocation, asset_to_teleport_away).into(),
+						0,
+						Unlimited,
+						dest_beneficiary,
+						dest,
+					);
+				<pallet_balances::Pallet<Runtime>>::mint_into(
+					&target_account,
+					delivery_fees.into(),
+				)
+				.unwrap();
+
 				assert_ok!(RuntimeHelper::<Runtime>::do_teleport_assets::<HrmpChannelOpener>(
 					RuntimeHelper::<Runtime>::origin_of(target_account.clone()),
 					dest,

cumulus/parachains/runtimes/assets/test-utils/src/test_cases_over_bridge.rs

@@ -20,7 +20,9 @@ use codec::Encode;
 use cumulus_primitives_core::XcmpMessageSource;
 use frame_support::{
 	assert_ok,
-	traits::{Currency, OnFinalize, OnInitialize, OriginTrait, ProcessMessageError},
+	traits::{
+		fungible::Mutate, Currency, OnFinalize, OnInitialize, OriginTrait, ProcessMessageError,
+	},
 };
 use frame_system::pallet_prelude::BlockNumberFor;
 use parachains_common::{AccountId, Balance};
@@ -164,6 +166,12 @@ pub fn limited_reserve_transfer_assets_for_native_asset_works<
 				}),
 			};
 
+			// Make sure sender has enough funds for paying delivery fees
+			// TODO: Get this fee via weighing the corresponding message
+			let delivery_fees = 1324039894;
+			<pallet_balances::Pallet<Runtime>>::mint_into(&alice_account, delivery_fees.into())
+				.unwrap();
+
 			// do pallet_xcm call reserve transfer
 			assert_ok!(<pallet_xcm::Pallet<Runtime>>::limited_reserve_transfer_assets(
 				RuntimeHelper::<Runtime, AllPalletsWithoutSystem>::origin_of(alice_account.clone()),

cumulus/parachains/runtimes/assets/test-utils/src/xcm_helpers.rs

@@ -0,0 +1,108 @@
+// Copyright Parity Technologies (UK) Ltd.
+// This file is part of Cumulus.
+
+// Cumulus is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Cumulus is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Helpers for calculating XCM delivery fees.
+
+use xcm::latest::prelude::*;
+
+/// Returns the delivery fees amount for pallet xcm's `teleport_assets` and
+/// `reserve_transfer_assets` extrinsics.
+/// Because it returns only a `u128`, it assumes delivery fees are only paid
+/// in one asset and that asset is known.
+pub fn transfer_assets_delivery_fees<S: SendXcm>(
+	assets: MultiAssets,
+	fee_asset_item: u32,
+	weight_limit: WeightLimit,
+	beneficiary: MultiLocation,
+	destination: MultiLocation,
+) -> u128 {
+	let message = teleport_assets_dummy_message(assets, fee_asset_item, weight_limit, beneficiary);
+	get_fungible_delivery_fees::<S>(destination, message)
+}
+
+/// Returns the delivery fees amount for a query response as a result of the execution
+/// of a `ExpectError` instruction with no error.
+pub fn query_response_delivery_fees<S: SendXcm>(querier: MultiLocation) -> u128 {
+	// Message to calculate delivery fees, it's encoded size is what's important.
+	// This message reports that there was no error, if an error is reported, the encoded size would
+	// be different.
+	let message = Xcm(vec![
+		SetFeesMode { jit_withdraw: true },
+		QueryResponse {
+			query_id: 0, // Dummy query id
+			response: Response::ExecutionResult(None),
+			max_weight: Weight::zero(),
+			querier: Some(querier),
+		},
+		SetTopic([0u8; 32]), // Dummy topic
+	]);
+	get_fungible_delivery_fees::<S>(querier, message)
+}
+
+/// Returns the delivery fees amount for the execution of `PayOverXcm`
+pub fn pay_over_xcm_delivery_fees<S: SendXcm>(
+	interior: Junctions,
+	destination: MultiLocation,
+	beneficiary: MultiLocation,
+	asset: MultiAsset,
+) -> u128 {
+	// This is a dummy message.
+	// The encoded size is all that matters for delivery fees.
+	let message = Xcm(vec![
+		DescendOrigin(interior),
+		UnpaidExecution { weight_limit: Unlimited, check_origin: None },
+		SetAppendix(Xcm(vec![
+			SetFeesMode { jit_withdraw: true },
+			ReportError(QueryResponseInfo { destination, query_id: 0, max_weight: Weight::zero() }),
+		])),
+		TransferAsset { beneficiary, assets: vec![asset].into() },
+	]);
+	get_fungible_delivery_fees::<S>(destination, message)
+}
+
+/// Approximates the actual message sent by the teleport extrinsic.
+/// The assets are not reanchored and the topic is a dummy one.
+/// However, it should have the same encoded size, which is what matters for delivery fees.
+/// Also has same encoded size as the one created by the reserve transfer assets extrinsic.
+fn teleport_assets_dummy_message(
+	assets: MultiAssets,
+	fee_asset_item: u32,
+	weight_limit: WeightLimit,
+	beneficiary: MultiLocation,
+) -> Xcm<()> {
+	Xcm(vec![
+		ReceiveTeleportedAsset(assets.clone()), // Same encoded size as `ReserveAssetDeposited`
+		ClearOrigin,
+		BuyExecution { fees: assets.get(fee_asset_item as usize).unwrap().clone(), weight_limit },
+		DepositAsset { assets: Wild(AllCounted(assets.len() as u32)), beneficiary },
+		SetTopic([0u8; 32]), // Dummy topic
+	])
+}
+
+/// Given a message, a sender, and a destination, it returns the delivery fees
+fn get_fungible_delivery_fees<S: SendXcm>(destination: MultiLocation, message: Xcm<()>) -> u128 {
+	let Ok((_, delivery_fees)) = validate_send::<S>(destination, message) else {
+		unreachable!("message can be sent; qed")
+	};
+	if let Some(delivery_fee) = delivery_fees.inner().first() {
+		let Fungible(delivery_fee_amount) = delivery_fee.fun else {
+			unreachable!("asset is fungible; qed");
+		};
+		delivery_fee_amount
+	} else {
+		0
+	}
+}

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-kusama/src/lib.rs

@@ -26,6 +26,8 @@ mod weights;
 pub mod xcm_config;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -75,7 +77,7 @@ use parachains_common::{
 };
 
 // XCM Imports
-use xcm::latest::prelude::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 /// The address format for describing accounts.
@@ -314,7 +316,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = RootOrFellows;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -671,9 +673,21 @@ impl_runtime_apis! {
 			use xcm::latest::prelude::*;
 			use xcm_config::KsmRelayLocation;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					xcm_config::KsmRelayLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(KsmRelayLocation::get())
 				}
@@ -714,6 +728,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-kusama/src/xcm_config.rs

@@ -16,7 +16,8 @@
 
 use super::{
 	AccountId, AllPalletsWithSystem, Balances, ParachainInfo, ParachainSystem, PolkadotXcm,
-	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
+	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, TransactionByteFee, WeightToFee, XcmpQueue,
+	CENTS,
 };
 use frame_support::{
 	match_types, parameter_types,
@@ -26,6 +27,7 @@ use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
 use parachains_common::{impls::ToStakingPot, xcm_config::ConcreteAssetFromSystem};
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -220,11 +222,21 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(KsmRelayLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-polkadot/src/lib.rs

@@ -26,6 +26,8 @@ mod weights;
 pub mod xcm_config;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use sp_api::impl_runtime_apis;
 use sp_core::{crypto::KeyTypeId, OpaqueMetadata};
 use sp_runtime::{
@@ -75,7 +77,7 @@ use parachains_common::{
 	HOURS, MAXIMUM_BLOCK_WEIGHT, NORMAL_DISPATCH_RATIO, SLOT_DURATION,
 };
 // XCM Imports
-use xcm::latest::prelude::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 /// The address format for describing accounts.
@@ -314,7 +316,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = RootOrFellows;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -671,9 +673,21 @@ impl_runtime_apis! {
 			use xcm::latest::prelude::*;
 			use xcm_config::DotRelayLocation;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					xcm_config::DotRelayLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(DotRelayLocation::get())
 				}
@@ -714,6 +728,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-polkadot/src/xcm_config.rs

@@ -16,7 +16,8 @@
 
 use super::{
 	AccountId, AllPalletsWithSystem, Balances, ParachainInfo, ParachainSystem, PolkadotXcm,
-	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
+	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, TransactionByteFee, WeightToFee, XcmpQueue,
+	CENTS,
 };
 use frame_support::{
 	match_types, parameter_types,
@@ -26,6 +27,7 @@ use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
 use parachains_common::{impls::ToStakingPot, xcm_config::ConcreteAssetFromSystem};
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -224,11 +226,21 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(DotRelayLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

@@ -75,6 +75,7 @@ use bp_runtime::HeaderId;
 pub use sp_runtime::BuildStorage;
 
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
+use xcm::latest::prelude::*;
 
 use weights::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight};
 
@@ -362,6 +363,20 @@ impl parachain_info::Config for Runtime {}
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(xcm_config::TokenLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForSiblingParachainDelivery = polkadot_runtime_common::xcm_sender::ExponentialPrice<
+	FeeAssetId,
+	BaseDeliveryFee,
+	TransactionByteFee,
+	XcmpQueue,
+>;
+
 impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
@@ -371,7 +386,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EnsureRoot<AccountId>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = PriceForSiblingParachainDelivery;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {
@@ -1014,9 +1029,21 @@ impl_runtime_apis! {
 			use xcm::latest::prelude::*;
 			use xcm_config::TokenLocation;
 
+			parameter_types! {
+				pub ExistentialDepositMultiAsset: Option<MultiAsset> = Some((
+					TokenLocation::get(),
+					ExistentialDeposit::get()
+				).into());
+			}
+
 			impl pallet_xcm_benchmarks::Config for Runtime {
 				type XcmConfig = xcm_config::XcmConfig;
 				type AccountIdConverter = xcm_config::LocationToAccountId;
+				type DeliveryHelper = cumulus_primitives_utility::ToParentDeliveryHelper<
+					XcmConfig,
+					ExistentialDepositMultiAsset,
+					xcm_config::PriceForParentDelivery,
+				>;
 				fn valid_destination() -> Result<MultiLocation, BenchmarkError> {
 					Ok(TokenLocation::get())
 				}
@@ -1057,6 +1084,7 @@ impl_runtime_apis! {
 			}
 
 			impl pallet_xcm_benchmarks::generic::Config for Runtime {
+				type TransactAsset = Balances;
 				type RuntimeCall = RuntimeCall;
 
 				fn worst_case_response() -> (u64, Response) {

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/xcm_config.rs

@@ -15,10 +15,10 @@
 // along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
 
 use super::{
-	AccountId, AllPalletsWithSystem, Balances, BridgeGrandpaRococoInstance,
-	BridgeGrandpaWococoInstance, DeliveryRewardInBalance, ParachainInfo, ParachainSystem,
-	PolkadotXcm, RequiredStakeForStakeAndSlash, Runtime, RuntimeCall, RuntimeEvent, RuntimeFlavor,
-	RuntimeOrigin, WeightToFee, XcmpQueue,
+	AccountId, AllPalletsWithSystem, Balances, BaseDeliveryFee, BridgeGrandpaRococoInstance,
+	BridgeGrandpaWococoInstance, DeliveryRewardInBalance, FeeAssetId, ParachainInfo,
+	ParachainSystem, PolkadotXcm, RequiredStakeForStakeAndSlash, Runtime, RuntimeCall,
+	RuntimeEvent, RuntimeFlavor, RuntimeOrigin, TransactionByteFee, WeightToFee, XcmpQueue,
 };
 use crate::{
 	bridge_hub_rococo_config::ToBridgeHubWococoHaulBlobExporter,
@@ -30,9 +30,16 @@ use frame_support::{
 };
 use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
-use parachains_common::{impls::ToStakingPot, xcm_config::ConcreteAssetFromSystem};
+use parachains_common::{
+	impls::ToStakingPot,
+	xcm_config::{ConcreteAssetFromSystem, RelayOrOtherSystemParachains},
+	TREASURY_PALLET_ID,
+};
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
+use rococo_runtime_constants::system_parachain::SystemParachains;
 use sp_core::Get;
+use sp_runtime::traits::AccountIdConversion;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -41,6 +48,7 @@ use xcm_builder::{
 	ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
 	SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
 	TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
+	XcmFeesToAccount,
 };
 use xcm_executor::{
 	traits::{ExportXcm, WithOriginFilter},
@@ -55,6 +63,7 @@ parameter_types! {
 		X2(GlobalConsensus(RelayNetwork::get()), Parachain(ParachainInfo::parachain_id().into()));
 	pub const MaxInstructions: u32 = 100;
 	pub const MaxAssetsIntoHolding: u32 = 64;
+	pub TreasuryAccount: Option<AccountId> = Some(TREASURY_PALLET_ID.into_account_truncating());
 }
 
 /// Adapter for resolving `NetworkId` based on `pub storage Flavor: RuntimeFlavor`.
@@ -253,7 +262,12 @@ impl xcm_executor::Config for XcmConfig {
 	type SubscriptionService = PolkadotXcm;
 	type PalletInstancesInfo = AllPalletsWithSystem;
 	type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
-	type FeeManager = ();
+	type FeeManager = XcmFeesToAccount<
+		Self,
+		RelayOrOtherSystemParachains<SystemParachains, Runtime>,
+		AccountId,
+		TreasuryAccount,
+	>;
 	type MessageExporter = BridgeHubRococoOrBridgeHubWococoSwitchExporter;
 	type UniversalAliases = Nothing;
 	type CallDispatcher = WithOriginFilter<SafeCallFilter>;
@@ -261,6 +275,9 @@ impl xcm_executor::Config for XcmConfig {
 	type Aliasers = Nothing;
 }
 
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// Converts a local signed origin into an XCM multilocation.
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
@@ -269,7 +286,7 @@ pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, R
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_cases.rs

@@ -186,7 +186,7 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 					XcmConfig::AssetTransactor::deposit_asset(
 						&ed,
 						&sibling_parachain_location,
-						&XcmContext::with_message_id([0; 32]),
+						Some(&XcmContext::with_message_id([0; 32])),
 					)
 					.expect("deposited ed");
 				}
@@ -194,7 +194,7 @@ pub fn handle_export_message_from_system_parachain_to_outbound_queue_works<
 				XcmConfig::AssetTransactor::deposit_asset(
 					&fee,
 					&sibling_parachain_location,
-					&XcmContext::with_message_id([0; 32]),
+					Some(&XcmContext::with_message_id([0; 32])),
 				)
 				.expect("deposited fee");
 

cumulus/parachains/runtimes/collectives/collectives-polkadot/src/lib.rs

@@ -45,6 +45,7 @@ pub mod fellowship;
 pub use ambassador::pallet_ambassador_origins;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
 use fellowship::{
 	migration::import_kusama_fellowship, pallet_fellowship_origins, Fellows,
 	FellowshipCollectiveInstance,
@@ -98,7 +99,7 @@ pub use sp_runtime::BuildStorage;
 // Polkadot imports
 use pallet_xcm::{EnsureXcm, IsVoiceOfBody};
 use polkadot_runtime_common::{BlockHashCount, SlowAdjustingFeeUpdate};
-use xcm::latest::BodyId;
+use xcm::latest::prelude::*;
 use xcm_executor::XcmExecutor;
 
 use weights::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight};
@@ -401,6 +402,20 @@ impl parachain_info::Config for Runtime {}
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(xcm_config::DotLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForSiblingParachainDelivery = polkadot_runtime_common::xcm_sender::ExponentialPrice<
+	FeeAssetId,
+	BaseDeliveryFee,
+	TransactionByteFee,
+	XcmpQueue,
+>;
+
 impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
@@ -410,7 +425,8 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EitherOfDiverse<EnsureRoot<AccountId>, Fellows>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = weights::cumulus_pallet_xcmp_queue::WeightInfo<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery =
+		polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {

cumulus/parachains/runtimes/collectives/collectives-polkadot/src/xcm_config.rs

@@ -14,8 +14,9 @@
 // limitations under the License.
 
 use super::{
-	AccountId, AllPalletsWithSystem, Balances, Fellows, ParachainInfo, ParachainSystem,
-	PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
+	AccountId, AllPalletsWithSystem, Balances, BaseDeliveryFee, FeeAssetId, Fellows, ParachainInfo,
+	ParachainSystem, PolkadotXcm, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
+	TransactionByteFee, WeightToFee, XcmpQueue,
 };
 use frame_support::{
 	match_types, parameter_types,
@@ -26,6 +27,7 @@ use frame_system::EnsureRoot;
 use pallet_xcm::XcmPassthrough;
 use parachains_common::{impls::ToStakingPot, xcm_config::ConcreteAssetFromSystem};
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -279,11 +281,14 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;

cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml

@@ -54,13 +54,14 @@ pallet-contracts = { path = "../../../../../substrate/frame/contracts", default-
 pallet-contracts-primitives = { path = "../../../../../substrate/frame/contracts/primitives", default-features = false}
 
 # Polkadot
-pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false}
-polkadot-core-primitives = { path = "../../../../../polkadot/core-primitives", default-features = false}
-polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false}
-polkadot-runtime-common = { path = "../../../../../polkadot/runtime/common", default-features = false}
-xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false}
-xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false}
-xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false}
+pallet-xcm = { path = "../../../../../polkadot/xcm/pallet-xcm", default-features = false }
+polkadot-core-primitives = { path = "../../../../../polkadot/core-primitives", default-features = false }
+polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", default-features = false }
+polkadot-runtime-common = { path = "../../../../../polkadot/runtime/common", default-features = false }
+rococo-runtime-constants = { path = "../../../../../polkadot/runtime/rococo/constants", default-features = false }
+xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false }
+xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false }
+xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false }
 
 # Cumulus
 cumulus-pallet-aura-ext = { path = "../../../../pallets/aura-ext", default-features = false }
@@ -115,6 +116,7 @@ std = [
 	"polkadot-core-primitives/std",
 	"polkadot-parachain-primitives/std",
 	"polkadot-runtime-common/std",
+	"rococo-runtime-constants/std",
 	"scale-info/std",
 	"sp-api/std",
 	"sp-block-builder/std",

cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs

@@ -224,13 +224,17 @@ impl pallet_balances::Config for Runtime {
 	type MaxFreezes = ConstU32<0>;
 }
 
+parameter_types! {
+	pub const TransactionByteFee: Balance = MILLICENTS;
+}
+
 impl pallet_transaction_payment::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type OnChargeTransaction =
 		pallet_transaction_payment::CurrencyAdapter<Balances, DealWithFees<Runtime>>;
 	type WeightToFee = WeightToFee;
 	/// Relay Chain `TransactionByteFee` / 10
-	type LengthToFee = ConstantMultiplier<Balance, ConstU128<MILLICENTS>>;
+	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
 	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
 	type OperationalFeeMultiplier = ConstU8<5>;
 }

cumulus/parachains/runtimes/contracts/contracts-rococo/src/xcm_config.rs

@@ -15,8 +15,9 @@
 
 use super::{
 	AccountId, AllPalletsWithSystem, Balances, ParachainInfo, ParachainSystem, PolkadotXcm,
-	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, WeightToFee, XcmpQueue,
+	Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin, TransactionByteFee, WeightToFee, XcmpQueue,
 };
+use crate::common::rococo::currency::CENTS;
 use frame_support::{
 	match_types, parameter_types,
 	traits::{ConstU32, EitherOfDiverse, Everything, Nothing},
@@ -24,8 +25,14 @@ use frame_support::{
 };
 use frame_system::EnsureRoot;
 use pallet_xcm::{EnsureXcm, IsMajorityOfBody, XcmPassthrough};
-use parachains_common::xcm_config::ConcreteAssetFromSystem;
+use parachains_common::{
+	xcm_config::{ConcreteAssetFromSystem, RelayOrOtherSystemParachains},
+	TREASURY_PALLET_ID,
+};
 use polkadot_parachain_primitives::primitives::Sibling;
+use polkadot_runtime_common::xcm_sender::ExponentialPrice;
+use rococo_runtime_constants::system_parachain::SystemParachains;
+use sp_runtime::traits::AccountIdConversion;
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
@@ -34,7 +41,7 @@ use xcm_builder::{
 	NativeAsset, ParentAsSuperuser, ParentIsPreset, RelayChainAsNative, SiblingParachainAsNative,
 	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
 	SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId, UsingComponents,
-	WithComputedOrigin, WithUniqueTopic,
+	WithComputedOrigin, WithUniqueTopic, XcmFeesToAccount,
 };
 use xcm_executor::XcmExecutor;
 
@@ -44,7 +51,7 @@ parameter_types! {
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
 	pub UniversalLocation: InteriorMultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
 	pub const ExecutiveBody: BodyId = BodyId::Executive;
-	pub CheckingAccount: AccountId = PolkadotXcm::check_account();
+	pub TreasuryAccount: Option<AccountId> = Some(TREASURY_PALLET_ID.into_account_truncating());
 }
 
 /// We allow root and the Relay Chain council to execute privileged collator selection operations.
@@ -167,7 +174,12 @@ impl xcm_executor::Config for XcmConfig {
 	type MaxAssetsIntoHolding = ConstU32<8>;
 	type AssetLocker = ();
 	type AssetExchanger = ();
-	type FeeManager = ();
+	type FeeManager = XcmFeesToAccount<
+		Self,
+		RelayOrOtherSystemParachains<SystemParachains, Runtime>,
+		AccountId,
+		TreasuryAccount,
+	>;
 	type MessageExporter = ();
 	type UniversalAliases = Nothing;
 	type CallDispatcher = RuntimeCall;
@@ -179,11 +191,14 @@ impl xcm_executor::Config for XcmConfig {
 /// Forms the basis for local origins sending/executing XCMs.
 pub type LocalOriginToLocation = SignedToAccountId32<RuntimeOrigin, AccountId, RelayNetwork>;
 
+pub type PriceForParentDelivery =
+	ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, ParachainSystem>;
+
 /// The means for routing XCM messages which are not for local execution into the right message
 /// queues.
 pub type XcmRouter = WithUniqueTopic<(
 	// Two routers - use UMP to communicate with the relay chain:
-	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, ()>,
+	cumulus_primitives_utility::ParentAsUmp<ParachainSystem, PolkadotXcm, PriceForParentDelivery>,
 	// ..and XCMP to communicate with the sibling chains.
 	XcmpQueue,
 )>;
@@ -231,6 +246,20 @@ impl cumulus_pallet_xcm::Config for Runtime {
 	type XcmExecutor = XcmExecutor<XcmConfig>;
 }
 
+parameter_types! {
+	/// The asset ID for the asset that we use to pay for message delivery fees.
+	pub FeeAssetId: AssetId = Concrete(RelayLocation::get());
+	/// The base fee for the message delivery fees.
+	pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
+}
+
+pub type PriceForSiblingParachainDelivery = polkadot_runtime_common::xcm_sender::ExponentialPrice<
+	FeeAssetId,
+	BaseDeliveryFee,
+	TransactionByteFee,
+	XcmpQueue,
+>;
+
 impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type RuntimeEvent = RuntimeEvent;
 	type XcmExecutor = XcmExecutor<XcmConfig>;
@@ -243,7 +272,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = cumulus_pallet_xcmp_queue::weights::SubstrateWeight<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = PriceForSiblingParachainDelivery;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {

cumulus/parachains/runtimes/testing/penpal/src/lib.rs

@@ -33,6 +33,7 @@ mod weights;
 pub mod xcm_config;
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
 use frame_support::{
 	construct_runtime,
 	dispatch::DispatchClass,
@@ -50,6 +51,7 @@ use frame_system::{
 	limits::{BlockLength, BlockWeights},
 	EnsureRoot, EnsureSigned,
 };
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use smallvec::smallvec;
 use sp_api::impl_runtime_apis;
 pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
@@ -488,7 +490,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EnsureRoot<AccountId>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = ();
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {

cumulus/parachains/runtimes/testing/rococo-parachain/Cargo.toml

@@ -42,6 +42,7 @@ polkadot-parachain-primitives = { path = "../../../../../polkadot/parachain", de
 xcm = { package = "staging-xcm", path = "../../../../../polkadot/xcm", default-features = false}
 xcm-builder = { package = "staging-xcm-builder", path = "../../../../../polkadot/xcm/xcm-builder", default-features = false}
 xcm-executor = { package = "staging-xcm-executor", path = "../../../../../polkadot/xcm/xcm-executor", default-features = false}
+polkadot-runtime-common = { path = "../../../../../polkadot/runtime/common", default-features = false }
 
 # Cumulus
 cumulus-pallet-aura-ext = { path = "../../../../pallets/aura-ext", default-features = false }
@@ -86,6 +87,7 @@ std = [
 	"parachain-info/std",
 	"parachains-common/std",
 	"polkadot-parachain-primitives/std",
+	"polkadot-runtime-common/std",
 	"scale-info/std",
 	"sp-api/std",
 	"sp-block-builder/std",
@@ -118,6 +120,7 @@ runtime-benchmarks = [
 	"pallet-xcm/runtime-benchmarks",
 	"parachains-common/runtime-benchmarks",
 	"polkadot-parachain-primitives/runtime-benchmarks",
+	"polkadot-runtime-common/runtime-benchmarks",
 	"sp-runtime/runtime-benchmarks",
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",

cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs

@@ -23,6 +23,8 @@
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 use cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases;
+use cumulus_primitives_core::ParaId;
+use polkadot_runtime_common::xcm_sender::NoPriceForMessageDelivery;
 use sp_api::impl_runtime_apis;
 use sp_core::OpaqueMetadata;
 use sp_runtime::{
@@ -511,7 +513,7 @@ impl cumulus_pallet_xcmp_queue::Config for Runtime {
 	type ControllerOrigin = EnsureRoot<AccountId>;
 	type ControllerOriginConverter = XcmOriginToTransactDispatchOrigin;
 	type WeightInfo = cumulus_pallet_xcmp_queue::weights::SubstrateWeight<Runtime>;
-	type PriceForSiblingDelivery = ();
+	type PriceForSiblingDelivery = NoPriceForMessageDelivery<ParaId>;
 }
 
 impl cumulus_pallet_dmp_queue::Config for Runtime {