Understanding Vouchers for Credit Invoices
Vouchers require a credit invoice when these conditions are met:
The supplier has been classified (with an address book category code) as a credit invoice issuer.
You specify the address book category code to use to identify credit invoice issuers in the General Constants program (P76A20).
The gross invoice amount exceeds the required minimum amount that is specified in the General Constants program.
The payment terms are not listed in the Payment Terms code (76A/TP) UDC table.
This UDC lists payment terms that do not require a credit invoice.
When you enter a voucher that meets these requirements, the system modifies the tax area of the voucher and replaces it with a similar percentage tax area that charges a transitory account. You set up these tax areas using the AP Tax Areas Relationship program (P76A25).
After the voucher is entered, you can enter the credit invoice.