How To Fix DG301 - Engineering change management: Change number &1 is locked

SAP Error Message - Details

• Message type: E = Error

• Message class: DG - DG: Messages for Dangerous Goods Management

• Message number: 301

• Message text: Engineering change management: Change number &1 is locked

What causes this issue?

The change number is locked because its attributes are being changed.

System Response

The system rejects your entries.

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DG301 - Engineering change management: Change number &1 is locked ?

  The SAP error message DG301, which states "Engineering change management: Change number &1 is locked," typically occurs in the context of Engineering Change Management (ECM) within SAP. This error indicates that the specified change number is currently locked, preventing any modifications or actions from being performed on it.
  Cause:
  
  Change Number Locking: The change number may be locked by another user or process. This can happen if someone is currently editing the change number or if a transaction that involves the change number is still open.
  Status of Change Number: The change number might be in a status that does not allow changes, such as being in a "Released" or "Completed" state.
  System Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a user or process has locked the change number, others will be unable to access it until the lock is released.
  
  Solution:
  
  Check Lock Entries: Use transaction code SM12 to check for lock entries related to the change number. You can search for the user who has locked the change number and see if it can be released.
  Release the Lock: If you find that the change number is locked by another user, you may need to contact that user to release the lock. If the user is unavailable, a system administrator can release the lock using transaction SM12.
  Verify Change Number Status: Check the status of the change number using transaction CC02 (Change Number) to ensure it is in a state that allows modifications. If it is in a locked or completed state, you may need to change its status or create a new change number.
  Wait for Completion: If the change number is being processed by another user, you may need to wait until they complete their work before you can access it.
  
  Related Information:
  
  Transaction Codes:
  
  CC01: Create Change Number
  CC02: Change Change Number
  CC03: Display Change Number
  SM12: Display and Delete Lock Entries
  
  
  User Roles: Ensure that you have the necessary authorizations to access and modify change numbers in the Engineering Change Management module.
  Documentation: Refer to SAP Help documentation for Engineering Change Management for more detailed information on managing change numbers and understanding their statuses.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or technical support for further assistance.