Retrieval of the Service Code for ISS Withholding

You can specify the service type code for a supplier or transaction in several places. This table shows how the system determines the service type code to use in ISS calculations:

Purchase Order Associated with Voucher?	Value in Processing Option Apply Default PO to Purchase Orders	Processing Option Service Code is blank?	Source That Determines Service Code for ISS Withholding
No	NA	No	Uses the value in the Service Code processing option.
No	NA	Yes	Uses the service code associated with the supplier's address book record.
Yes	No	NA	Uses the service code that was written to the F76B705 table when you entered the purchase order.
Yes	Yes	Yes	Uses the value in the Service Code processing option.
Yes	Yes	No	Uses the service code that was written to the F76B705 table when you entered the purchase order.