title: "Tx Payment: drop ED requirements for tx payments with exchangeable asset"
doc:
- audience: Runtime Dev
description: |
Drop the Existential Deposit requirement for the asset amount exchangeable for the fee asset (eg. DOT/KSM) during transaction payments.
This achieved by using `SwapCredit` implementation of asset conversion, which works with imbalances and does not require a temporary balance account within the transaction payment.
