You specify which house banks are allowed for every payment method or, if you prefer, for both payment method and currency. You should sort this list of permissible banks in ranking order according to priority. See the figure below, (1). For every combination of payment method and house bank, specify via which bank account (for example giro or foreign exchange account) the payment should be made. See the figure below, (2).

For every account at a house bank, specify the amounts that are available for the payment run. See the figure below, (3).

The payment program determines the house bank in the same sequence:

1. First it determines the bank ID (house banks) based on the payment method and currency. If it finds no entry for the combination, it checks the bank for payment method without currency specification, if such an entry exists.
2. It determines the account ID on the basis of the bank ID, the payment method and the currency.
3. Finally, it finds out whether sufficient amounts are available for both bank ID and account ID.

During the payment run the payment program therefore attempts to determine a house bank and a bank account that has a sufficient amount available for payment. This may result in the following possibilities:

• No house bank is found that fulfills all terms. The payment cannot then be made with the payment method with which the check was carried out. The checks are carried out for the next possible bank. If no bank is determined, the payment method can not be used. If another method is available, it will then be checked as well. This is noted in the log for the payment run.

• One house bank only is determined. The payment is made via this house bank.