How To Fix CMCL101 - Item &1 has been locked by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CMCL - Service layer for component allocations

• Message number: 101

• Message text: Item &1 has been locked by &2

What causes this issue?

You want to edit item &V1&, which has, however, been locked by user
&V2&.

System Response

The component assignment cannot be created.

How to fix this error?

Try to carry out the assignment again, after user &V2& has unlocked
item &V1& or has left the Engineering Workbench.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMCL101 - Item &1 has been locked by &2 ?

  The SAP error message CMCL101 indicates that a specific item (denoted by &1) is currently locked by another user or process (denoted by &2). This typically occurs in scenarios where multiple users or processes are trying to access or modify the same data simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: Another user or transaction is currently editing or processing the item, which prevents other users from making changes.
  Transaction Locking: SAP uses locking mechanisms to ensure data integrity. If a user is in the middle of a transaction that involves the item, it will be locked until the transaction is completed or canceled.
  Long-running Processes: Sometimes, background jobs or long-running transactions can hold locks for an extended period, causing other users to encounter this error.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user or process to complete their transaction and then try again.
  Identify the Lock: Use transaction codes like SM12 (Display and Delete Locks) to identify which user or process is holding the lock. You can check the lock entries and see if it is safe to contact the user or if you need to take further action.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. However, this should be done with caution, as it may lead to data inconsistencies if the other user is still working on the item.
  Communicate with Users: If you identify the user holding the lock, you can communicate with them to understand their needs and coordinate access to the item.
  Check for Background Jobs: If a background job is causing the lock, you may need to wait for it to complete or check if it can be canceled or rescheduled.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks can be exclusive (preventing all other access) or shared (allowing read access).
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related issues.
  SM37: To monitor background jobs that might be causing locks.
  
  
  User Training: Educating users about proper transaction handling and the importance of releasing locks can help minimize these issues in the future.
  
  If the problem persists or if you are unsure about taking action, it may be advisable to consult with your SAP Basis team or system administrator for further assistance.