How To Fix SWF_RUN551 - Unable to deliver event '&1' of object '&2'(&3)

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 551

• Message text: Unable to deliver event '&1' of object '&2'(&3)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_RUN551 - Unable to deliver event '&1' of object '&2'(&3) ?

  The SAP error message SWF_RUN551 indicates that there is an issue with delivering an event in the workflow system. This error typically occurs when the workflow engine is unable to process an event for a specific object. The placeholders &1, &2, and &3 in the error message represent specific details about the event and the object involved.
  Causes:
  
  Object Not Found: The object specified in the error message may not exist or may have been deleted.
  Event Not Registered: The event that is being triggered may not be properly registered in the system.
  Workflow Configuration Issues: There may be issues with the workflow configuration or the event linkage.
  Authorization Issues: The user or system may not have the necessary authorizations to process the event.
  System Performance Issues: If the system is under heavy load, it may not be able to process events in a timely manner.
  
  Solutions:
  
  Check Object Existence: Verify that the object specified in the error message exists in the system. You can do this by checking the relevant transaction or using the object key.
  Event Registration: Ensure that the event is correctly registered in the system. You can check the event linkage in the workflow configuration.
  Review Workflow Configuration: Check the workflow definition and ensure that all necessary events and actions are properly configured.
  Authorization Check: Ensure that the user or system has the necessary authorizations to trigger and process the event.
  System Performance: Monitor system performance and check for any bottlenecks. If the system is under heavy load, consider optimizing performance or scheduling batch jobs during off-peak hours.
  Check Workflow Logs: Review the workflow logs for additional details about the error. This can provide insights into what went wrong during the event processing.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Overview) to analyze workflow instances and events.
  Workflow Monitoring: Use transaction SWI6 to monitor workflow instances and check for any stuck or failed instances.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to this error message.
  Debugging: If necessary, you can debug the workflow to identify the exact point of failure.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or Workflow team for further investigation.