Encode as GeneralIndex directly without parachain prefix

Author: yrong

pallets/salp/src/lib.rs

@@ -996,11 +996,8 @@ pub mod pallet {
 				TryInto::<u128>::try_into(amount).map_err(|_| Error::<T>::ConvertFailure)?;
 			let statemine_asset = MultiAsset {
 				id: AssetId::Concrete(MultiLocation::new(
-					1,
-					Junctions::X2(
-						Junction::Parachain(1000),
-						Junction::GeneralIndex(asset_id.into()),
-					),
+					0,
+					Junctions::X1(Junction::GeneralIndex(asset_id.into())),
 				)),
 				fun: Fungibility::Fungible(amount_128),
 			};

runtime/common/src/xcm_impl.rs

@@ -157,6 +157,12 @@ impl<T: Get<ParaId>> Convert<MultiLocation, Option<CurrencyId>> for BifrostCurre
 						None
 					}
 				},
+
+				_ => None,
+			},
+			MultiLocation { parents, interior } if parents == 0 => match interior {
+				X1(GeneralIndex(key)) if key == parachains::Statemine::USDT_ID.into() =>
+					Some(Stable(TokenSymbol::USDT)),
 				_ => None,
 			},
 			_ => None,