Bank Details in the Customer/Vendor Master Record
In the master record of the customer/vendor, you can make as many bank detail entries as you want. If the payment transactions should always be carried out by a customer/vendor's bank, only specify this bank.
If you only want to allow one house bank to carry out payment transactions with a customer/vendor, enter this bank in the master record of the customer/vendor. The correct field for this is in the company code-specific area of the master record.