How To Fix RSM520 - IDoc no. & for request & has already been processed once

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 520

• Message text: IDoc no. & for request & has already been processed once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM520 - IDoc no. & for request & has already been processed once ?

  The SAP error message RSM520 indicates that an IDoc (Intermediate Document) with a specific number has already been processed for a particular request. This typically occurs in scenarios where the same IDoc is being processed multiple times, which can lead to data inconsistencies or duplication issues.
  Cause:
  
  Duplicate Processing: The IDoc has already been processed successfully, and the system is trying to process it again.
  IDoc Status: The IDoc might be in a status that indicates it has already been processed (e.g., status 53 - "Processed").
  Reprocessing Attempt: An attempt to reprocess an IDoc that has already been handled, either due to manual intervention or automated processes.
  
  Solution:
  
  Check IDoc Status: Use transaction code WE02 or WE05 to check the status of the IDoc. If it has been processed successfully, you may not need to process it again.
  Avoid Duplicate Processing: Ensure that your processes or programs do not attempt to reprocess IDocs that have already been handled. Implement checks to prevent duplicate submissions.
  Error Handling: If the IDoc needs to be reprocessed due to an error in the initial processing, you may need to change its status or create a new IDoc with the necessary corrections.
  Monitoring and Logging: Implement monitoring to track IDoc processing and log any issues that arise to prevent future occurrences of this error.
  
  Related Information:
  
  IDoc Processing: Understand the IDoc lifecycle, including statuses like "Created", "Awaiting Processing", "Processed", and "Error".
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE02 (Display IDoc), WE05 (IDoc List), and BD87 (Reprocess IDocs).
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for specific scenarios related to IDoc processing.
  
  If the issue persists or if you need to reprocess an IDoc that has been marked as processed, you may need to consult with your SAP Basis or technical team for further assistance.