When you are reporting on Invoice information, select the Vendor name from Profile. Profile is in the Inquiries section, under Vendor Information.

The Vendor name is stored with the Check batch because a manual check may have Payee Information that does not match the Vendor name and address.

Go to the Edit menu, to Links, and then to Fields and press Enter.

The Files on the report will be displayed. If you press Enter again, you will be able to see the Linking field between the 2 files.

The linking field between the API????H and the APVEND.R should be Vendor number.