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
The change number is locked because its attributes are being changed.
The system rejects your entries.
Contact your system administrator.
Error message extract from SAP system. Copyright SAP SE.
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
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