How To Fix MPE_OAN109 - Event &1, version &2 is unknown in OAN &3, version &4

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 109

• Message text: Event &1, version &2 is unknown in OAN &3, version &4

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN109 - Event &1, version &2 is unknown in OAN &3, version &4 ?

  The SAP error message MPE_OAN109 typically indicates that there is an issue with the event versioning in the context of the Object Activity Notification (OAN) framework. This error occurs when the system cannot find a specific event version that is expected for a given OAN.
  Cause:
  
  Missing Event Version: The specified event version does not exist in the system. This could happen if the event was not properly created or if it was deleted.
  Incorrect Configuration: There may be a misconfiguration in the event management settings or in the OAN setup.
  Data Inconsistency: There could be inconsistencies in the data, such as mismatched versions between the event and the OAN.
  Transport Issues: If the event was transported from one system to another, it might not have been transported correctly, leading to missing versions.
  
  Solution:
  
  Check Event Configuration: Verify that the event and its versions are correctly configured in the system. You can do this by navigating to the relevant transaction codes (like OAN or similar) and checking the event details.
  Create or Restore Event Version: If the event version is indeed missing, you may need to create it or restore it from a backup if available.
  Review Transport Logs: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported correctly.
  Consistency Check: Run consistency checks in the system to identify any discrepancies between the event and the OAN.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the software you are using for any known issues or patches.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAN, OAN1, or others that pertain to event management.
  SAP Notes: Search for SAP Notes related to MPE_OAN109 for any specific fixes or recommendations provided by SAP.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with the error details and any troubleshooting steps you have already taken.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.