No costing rule exists for the bank transaction in the system

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Maintain a costing rule in Customizing for costing the bank
transaction, and assign this rule to a bank product/variant in 'Product
Assignment' ('Product Allocation').

Error message extract from SAP system. Copyright SAP SE.