How To Fix WS678 - Payment method relevant for SEPA; unique mandate reference &1 assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 678

• Message text: Payment method relevant for SEPA; unique mandate reference &1 assigned

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS678 - Payment method relevant for SEPA; unique mandate reference &1 assigned ?

  Certainly! Here's a detailed explanation regarding the SAP error message WS678:
  
  SAP Error Message: WS678
  Text: Payment method relevant for SEPA; unique mandate reference &1 assigned
  
  
  Cause:
  This error occurs during the processing of payment transactions in SAP when the payment method used is relevant for SEPA (Single Euro Payments Area) direct debits or credit transfers, but the system detects that a unique mandate reference (UMR) has already been assigned to the payment document or the mandate reference is duplicated.
  In SEPA direct debit processing, each mandate reference must be unique per creditor to comply with SEPA regulations. The system enforces this uniqueness to avoid duplicate mandates, which could lead to payment rejections or compliance issues.
  Typical causes include:
  
  Attempting to assign a mandate reference that has already been used for another payment or mandate.
  Incorrect configuration or master data where mandate references are not properly maintained or generated.
  Manual entry of mandate references that duplicates an existing one.
  Payment