When it comes to the Invoice (in MIRO) the default system settings check for the Company Code, Vendor Number, Reference Field (at the invoice header) and Invoice Date to validate if the invoice is a duplicate one.
BUT that is only for INVOICE.
The same does not happen when you choose the CREDIT MEMO option in MIRO. So, i can post MULTIPLE credit memos with the same Invoice Date, same Amount and same Reference Text.
Is this standard behaviour? If no, am i doing something wrong.
Any suggestions how to avoid a duplicate CREDIT Memo.