3691453 - Error - 'Multiple external payments not allowed' occurs in the Payment

Payments remain in 'In Transfer' status and while trying to delete the payments below mentioned error occurs.
Error - Multiple external payments not allowed.

SAP Business ByDesign

1. Go to the Payment management work center.
2. Go to the Payment monitor sub view.
3. Filter it with the 'Payment in Transfer'.
4. Locate the relevant Payment ID's.
5. Observe that these are Sales order and it was created automatically via a Company A and paid through Company B. Due to an error, duplicate sales orders were created, identifiable by the same external reference. Although the sales orders can be rejected, the payments in transit persist in the system.

The duplicate payments created via Company A which are having Journal entry already created and the status are in completed and because of this error occurs.

1. Deleting the duplicate transactions is not possible as the Journal entry got posted in the system for those duplicate sales orders/payments.
2. So the only option here is that posting the Manual Journal Entry voucher to reverse the G/L postings and matching the balances in accounting.
3. Document level deletion or reversal via backend is not possible as Journal entry got impacted.

Payment in transfer, duplicate payments, PayPal payments, multiple external payments not allowed, journal entry, manual journal entry voucher, general ledger reversal, payment monitor. , KBA , SRD-FIN-MOP , Payment Management , Problem