3456499 - Overallocation of Incoming Direct Debits Based on Memo Line Rule

You have executed a number of Incoming Direct Debits against customers, for example by running a Receivables - Payment Run. Subsequently a payment file has been created (for example: SEPA Direct Debit).
A bank statement in format MT940 confirming these Incoming Direct Debits is processed thereafter.
You have set up a Rule for Analyzing Memo Lines, Type: 9 - DME Reference, in order to effect an automatic confirmation of relevant Direct Debit payments.
Related Payment Allocations remain in status 'Postprocessing Required'.
When accessing concerned Payment Allocations you notice an over-allocation for each related bank statement transaction.
This will turn the Open Amount in each allocation negative.

SAP Business ByDesign

Bank Statement  Payment Allocation  DME Reference , KBA , SRD-FIN-CLM , Cash and Liquity Managment , Problem