Create Standing Instructions for Payment
Details 
...
1. Choose Master Data ® Business Partner ® Standing Instructions.
2. Enter (the Business partner and) the Company code.
3. Choose the Payment details tab page.
4. Several possible types of payment details can be defined for each business partner and each currency. Using a freely definable Payment details ID combined with a currency, the SAP R/3 System can uniquely identify valid payment details.
The fields House Bank and Account ID define the bank data of your own house bank.
By choosing Payment Activity and Payment Request, you can determine whether a payment involves a payment activity (active initiation of a payment with a payment program) and the way in which the payment is to be posted. The choice of payment program determines the posting logic.
The payment methods to be used (credit transfer, check, and so on) are provided for the respective payment program via the fields Payment Method and/or Payment Method Supplement.
If payment involves a payment activity, you must enter a Payer, so that corresponding payments can be generated with the help of the payment program. You must specify a partner bank ID if you want to choose a particular business partner bank account. Otherwise, the bank details are taken from the business partner data. You can also enter the payment details for payers/payees other than the business partner.
For payment requests, it is also possible to decide whether, and how, payments can be combined (netting).
You will find which entry fields are required, optional or obsolete in the Input Help: Payment Details.
5.
You can open
the screen Change Business Partner: Payment Details on the tab page
Assignment, using the
key (Assign). Here you
determine for which financial transactions the payment details you have
selected are valid.
Using the
(Import from other Partner) key, you can copy
the Standing Instructions: Payment Details from another business
partner.
The assignment takes place at the following levels:
...
a. Contract type (1 loan, 2 security, 4 foreign exchange, 5 money market, 6 derivative)
b. Product category
c. Product type
The availability of product types depends upon their Customizing settings.
d. Transaction type
The availability of transaction types depends upon their Customizing settings.
There are several ways you can carry out the assignment:
...
a. Select the contract types / product categories / product types / transaction types.

If you have selected a superior node, you cannot deselect the nodes that are automatically selected below it.
b.
Make
selections using the
key, which also provides you with an input
help. You can enter your assignments here directly. Crosses are entered in the
list against your selections. You can use this function to assign incoming and
outgoing payments.
c.
Use the
key (select all) to assign payment
details to all contract types. Use the
key
(deselect all) to reverse all your selections. You can use these
functions to assign incoming and outgoing payments.
Unless you have carried out these allocations, the payment details will not appear as the proposed standing instructions when you enter a transaction.
6. Save the changed data.