best practice for supplier name change R12

Does anyone know if there's documentation for best practices involving Supplier maintenance?  In the past, we've added a new supplier when a supplier has changed it's name.  I think this was Payables decision.  Now we have a supplier name change but it's a 1099 supplier and we can't enter the tax id# again and still be able to print 1099 forms for the supplier at year end.  Any advice?

Thanks.