How To Fix UJW_EXCEPTION021 - Module ID not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: UJW_EXCEPTION - BPC: Work Status Message Class

• Message number: 021

• Message text: Module ID not valid

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 UJW_EXCEPTION021 - Module ID not valid ?

  The SAP error message UJW_EXCEPTION021: Module ID not valid typically occurs in the context of SAP's User Management Engine (UME) or when dealing with user roles and authorizations. This error indicates that the system is unable to recognize or validate the specified module ID, which can be due to several reasons.
  Causes:
  
  Invalid Module ID: The module ID you are trying to use may not exist or may have been deleted or deactivated.
  Configuration Issues: There may be issues with the configuration of the UME or the specific module you are trying to access.
  Authorization Problems: The user may not have the necessary authorizations to access the specified module.
  Data Consistency Issues: There could be inconsistencies in the data related to the module ID in the database.
  System Updates or Changes: Recent updates or changes to the system may have affected the module IDs or their configurations.
  
  Solutions:
  
  Verify Module ID: Check the module ID you are using to ensure it is correct and exists in the system. You can do this by navigating to the relevant configuration area in SAP.
  Check Configuration: Review the configuration settings for the UME and the specific module to ensure everything is set up correctly.
  User Authorizations: Ensure that the user encountering the error has the necessary authorizations to access the module. You may need to adjust roles or permissions.
  Data Consistency Check: Run consistency checks on the relevant data to ensure there are no discrepancies. This may involve checking the database or using SAP tools to validate data integrity.
  Consult Documentation: Refer to SAP documentation or support notes related to the specific module or UME for any known issues or additional troubleshooting steps.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it appears to be a bug or a deeper system issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SU01 (User Maintenance), PFCG (Role Maintenance), and others related to user management.
  System Logs: Review system logs (SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.