You can check "Flag for double invoices or credit memos" on Vendor master data.
In FK02, Company code data -> Options Payment transactions.
Tick Check double invoice.
Notes:
It is common for the users to ignore the warning messages
but end up complaining when duplicate payments are made. We changed the
warning to error messages in the message control and things quickly came
under control.
How to check fields such as date, reference number etc. so that a warning message will pop-up if user tries to do such a transaction 2 times?
Use tcode: OMRDC
You can also do the setting using the SPRO t-code:-
The path is as follows:
SPRO
- SAP Reference IMG
-- Materials Management
--- Logistics Invoice Verification
---- Incoming Invoice
----- Set check for duplicate invoices
The following checks can be applied:
1. Select the field Check company code, if you want the system to check if the reference document occurs twice in the given company code.
2. Select the field Check reference number, if you want the system to check if the reference number occurs twice.
3. Select the field Check invoice date, if you want the system to check if the invoice date in an invoice document occurs twice.
