How can you link customer and vendor master records and what is the purpose of doing so ?

On the customer master there is a field “vendor” and likewise on the vendor master there is a field “customer”.
By entering these master data numbers, a link can be created between the AP/AR subledgers for use in the payment program, dunning routine and the clearing of open items.
For example in the payment program, if a specific business partner is your vendor but also your customer, linking their master records together will allow the open AR invoices to be offset against the outstanding AP invoices.

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