How To Fix MJ064 - Dynpro & & is locked in the task &

SAP Error Message - Details

• Message type: E = Error

• Message class: MJ - Field Selection

• Message number: 064

• Message text: Dynpro & & is locked in the task &

What causes this issue?

The screen to be changed by field selection is already contained in
another task. If this task has the same transport route as your other
tasks and transport requests, no action is required.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Make sure that this task takes the same transport route as your other
tasks.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MJ064 - Dynpro & & is locked in the task & ?

  The SAP error message MJ064 indicates that a specific dynpro (dynamic program) is locked in the current task. This typically occurs when a user is trying to access a transaction or screen that is currently being used or modified by another user or process. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Concurrent Access: Another user is currently using the same transaction or screen, which locks the dynpro.
  Long-running Processes: A long-running transaction or background job may be holding the lock on the dynpro.
  System Configuration: Certain configurations or settings in the SAP system may lead to locking issues.
  User Session Issues: Sometimes, a user session may not have been properly terminated, leading to a lock.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the transaction may resolve the issue.
  Identify the Lock: Use transaction code SM12 to check for locks. You can see which user or process is holding the lock and take appropriate action.
  Terminate the Lock: If you have the necessary authorizations, you can delete the lock entry in SM12. However, be cautious as this may disrupt the other user's work.
  Check for Long-running Jobs: Use transaction SM37 to check for any long-running jobs that might be causing the lock. If necessary, you can terminate these jobs.
  User Session Management: Ensure that user sessions are properly managed and terminated when no longer needed. You can check active sessions using transaction SM04.
  Contact SAP Basis Team: If the issue persists, it may be necessary to involve the SAP Basis team to investigate further, especially if it’s a recurring problem.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM04: To view active user sessions.
  SM37: To monitor background jobs.
  
  
  Documentation: Refer to SAP Help documentation for more details on dynpro locking and transaction management.
  User Training: Ensure that users are trained on how to properly log off and manage their sessions to minimize locking issues.
  
  By following these steps, you should be able to diagnose and resolve the MJ064 error in SAP.