How To Fix AFX_WORKBENCH901 - Internal error: Unexpected event in method &1

SAP Error Message - Details

• Message type: E = Error

• Message class: AFX_WORKBENCH - Messages from AFX Workbench

• Message number: 901

• Message text: Internal error: Unexpected event in method &1

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message AFX_WORKBENCH901 - Internal error: Unexpected event in method &1 ?

  The SAP error message AFX_WORKBENCH901 indicates an internal error that occurs in the SAP system, specifically related to the workbench. The message states that there was an "unexpected event in method &1," where "&1" typically represents the method or function that encountered the issue.
  Possible Causes:
  
  System Bugs: This error can be caused by bugs in the SAP system or specific components that are not functioning as expected.
  Configuration Issues: Incorrect configuration settings in the workbench or related components may lead to unexpected behavior.
  Data Inconsistencies: Inconsistent or corrupted data in the database can trigger internal errors during processing.
  Custom Code: If there are custom developments or enhancements in the system, they may not be handling certain events correctly, leading to this error.
  Version Compatibility: Issues may arise if there are compatibility problems between different versions of SAP components or if the system is not up to date.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal. SAP frequently releases notes that address known issues and provide patches or workarounds.
  System Logs: Review the system logs (transaction SM21) and short dumps (transaction ST22) for more detailed information about the error. This can help identify the root cause.
  Debugging: If you have access to the development environment, you can debug the method mentioned in the error message to understand what went wrong.
  Check Custom Code: If there are custom developments, review the code for any potential issues that could lead to unexpected events.
  Update System: Ensure that your SAP system is up to date with the latest support packages and patches, as these may contain fixes for known issues.
  Consult SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including any logs or dumps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SE80 (Object Navigator) for debugging.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Documentation: Review SAP documentation related to the workbench and the specific components involved in the error for additional insights.
  
  By following these steps, you should be able to diagnose and potentially resolve the AFX_WORKBENCH901 error in your SAP system.