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.  |