How To Fix CCM112 - Callback number & already locked. Lock not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: CCM -

• Message number: 112

• Message text: Callback number & already locked. Lock not possible.

What causes this issue?

Callback is being processed and is therefore locked.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CCM112 - Callback number & already locked. Lock not possible. ?

  The SAP error message CCM112 indicates that a callback number is already locked, and therefore, a new lock cannot be established. This typically occurs in the context of the SAP system's handling of callback numbers, which are used in various processes, such as in the context of the SAP Convergent Charging (SAP CC) or other related modules.
  Cause:
  
  Concurrent Access: The callback number is being accessed or modified by another process or user, leading to a lock on that resource.
  Long-Running Transactions: If a transaction that uses the callback number is taking too long to complete, it may hold the lock longer than expected.
  System Configuration: There may be configuration issues or bugs in the system that lead to improper handling of locks.
  
  Solution:
  
  Identify the Lock: Use transaction codes like SM12 (to view and manage locks) to identify which user or process is holding the lock on the callback number.
  Release the Lock: If it is safe to do so, you can manually release the lock from SM12. Be cautious when doing this, as it may affect other users or processes.
  Check for Long-Running Transactions: Investigate if there are any long-running transactions that are holding the lock. If necessary, you may need to terminate those transactions.
  Review System Logs: Check the system logs for any errors or warnings that might provide additional context about the locking issue.
  Consult Documentation: Review SAP documentation or notes related to the specific module you are working with for any known issues or patches.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), and ST22 (dump analysis) for troubleshooting.
  Performance Monitoring: Regularly monitor system performance and transaction durations to prevent locking issues.
  User Training: Ensure that users are trained on how to properly handle transactions that may involve callback numbers to minimize locking conflicts.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the CCM112 error message in SAP.