How To Fix SDMSK_UI255 - Assignement enqueued by another user

SAP Error Message - Details

• Message type: E = Error

• Message class: SDMSK_UI - Data Masking: UI

• Message number: 255

• Message text: Assignement enqueued by another user

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDMSK_UI255 - Assignement enqueued by another user ?

  The SAP error message "SDMSK_UI255 Assignment enqueued by another user" typically occurs in the context of the SAP system when a user tries to access or modify a resource that is currently locked by another user. This is a common scenario in multi-user environments where data integrity is maintained through locking mechanisms.
  Cause:
  
  
  Record Locking: The error indicates that the record or object you are trying to access is currently locked by another user. This can happen if:
  
  Another user is editing the same record.
  A previous transaction did not release the lock properly.
  The system is configured to enforce strict locking for certain operations.
  
  
  
  Long-running Transactions: If a user has a long-running transaction, it may hold the lock for an extended period, preventing others from accessing the same data.
  
  
  Background Jobs: Sometimes, background jobs or processes may also hold locks on records, leading to this error.
  
  
  Solution:
  
  
  Wait and Retry: The simplest solution is to wait for a few moments and then try to access the record again. If the other user completes their transaction, the lock will be released.
  
  
  Identify the Lock: You can use transaction codes like SM12 (Display and Delete Locks) to check which user is holding the lock. If you have the necessary authorizations, you can also release the lock if it is appropriate to do so.
  
  
  Communicate with Users: If you identify the user holding the lock, you may want to communicate with them to understand if they can release the lock or if they are still working on the record.
  
  
  Check for Background Jobs: If a background job is holding the lock, you may need to wait for it to complete or check with the administrator to see if it can be terminated.
  
  
  System Configuration: If this issue occurs frequently, it may be worth reviewing the system configuration and locking strategy to ensure it aligns with business processes.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related issues.
  ST22: To check for dumps that might indicate underlying issues.
  
  
  
  User Training: Ensure that users are trained on how to properly complete transactions to avoid leaving locks in place.
  
  
  Performance Monitoring: Regularly monitor system performance and user activity to identify patterns that may lead to locking issues.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to locking behavior in your specific version of SAP.
  
  
  By following these steps, you should be able to resolve the "SDMSK_UI255 Assignment enqueued by another user" error effectively.