Changing the Supplier Name
Please confirm the following suggestion against article ID 945037.1; and note we are using R12.1.2.
The supplier name can be changed and the system will allow you to do so. You may query up the supplier in the Supplier entry Form and change the Name of the supplier to the new name.
There should not be impact on the system working, when supplier name is changed, as invoice/payments would work on the vendor_id. By changing the name, we are changing the vendor_name and the vendor_id would remain the same. Hence, you would be able to work with the existing invoices and payments in a similar manner.