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Message type: E = Error
Message class: ECM - General Messages for Engineering Change Management
Message number: 021
Message text: Lock the change number
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ECM021
- Lock the change number ?The SAP error message ECM021, which states "Lock the change number," typically occurs in the context of Change Management within SAP, particularly when working with Engineering Change Management (ECM) or similar functionalities. This error indicates that there is an issue with the locking mechanism for a change number, which is used to manage changes to materials, documents, or other objects in the system.
Cause:
- Concurrent Access: The change number may be locked by another user or process. This can happen if multiple users are trying to access or modify the same change number simultaneously.
- Incomplete Transactions: If a previous transaction involving the change number was not completed properly, it may remain locked.
- System Configuration: There may be configuration settings in the system that affect how change numbers are locked and released.
- User Authorizations: The user may not have the necessary authorizations to unlock or access the change number.
Solution:
- Check Lock Entries: Use transaction code
SM12
to check for lock entries related to the change number. You can identify if another user or process is holding the lock.- Release Locks: If you find that a lock is held by a user who is no longer active, you may need to release the lock manually (if you have the necessary authorizations).
- Complete Pending Transactions: Ensure that any pending transactions related to the change number are completed. This may involve checking for incomplete change requests or other related documents.
- Review User Authorizations: Ensure that the user has the appropriate authorizations to access and modify the change number.
- Consult with Basis Team: If the issue persists, it may be necessary to consult with your SAP Basis team to investigate any underlying system issues or configurations that may be causing the lock.
Related Information:
CC01
(Create Change Number), CC02
(Change Change Number), and CC03
(Display Change Number) for managing change numbers.If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.
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