From the SAP Easy Access screen, choose Accounting →
Financial accounting →
General ledger →
Individual reversal or Mass reversal.
Enter the document number, the company code, and the fiscal year (optional).
If the reverse document cannot be posted to the same period as the original document, enter the posting date and the posting period of the reversing document.
If the document to be reversed is a check payment, you will also have to specify a void reason code. You can display permitted void reason codes with the possible entries button. Reasons 1-3 can only be used by the system.
The system generates a reverse document, creating debit and credit amounts.