Control the Vendor Master Fields

You can control the Vendor Master display of fields in transaction code OBD3. You will need to set this for each Vendor Account Group.

For example, if you does not want to checked for duplicate invoices: Vendor #, Reference #. Date.. in the system.

Goto transaction OBD3,
double click on the Vendor Account Group,
double click on the Company code data
double click on the Payment Transactions
Change the Double invoice validation field to required or optional.