We have the following problem that is urgent and has to be solved quickly.
Our Finance department people are processing invoices in the MRHR module and it is allowing them to put an invoice in twice.
I have to display an system message (error) that will not allow them to put in an duplicate invoice.
Can you please let me know the solution and/or suggestions (user exits etc) on how to proceed to solve the problem.
Thank you very much. Thanks in advance.