How To Fix CCSEQ011 - The change sequence graph has already been locked, processing cancelled

SAP Error Message - Details

• Message type: E = Error

• Message class: CCSEQ - Change sequence graph

• Message number: 011

• Message text: The change sequence graph has already been locked, processing cancelled

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCSEQ011 - The change sequence graph has already been locked, processing cancelled ?

  The SAP error message CCSEQ011 indicates that a change sequence graph has been locked, which prevents further processing. This typically occurs in the context of change management in SAP, particularly in the areas of production planning or controlling where change sequences are used to manage changes in production processes.
  Cause:
  
  Concurrent Access: The error often arises when multiple users or processes attempt to access or modify the same change sequence graph simultaneously. This can lead to a lock being placed on the graph to maintain data integrity.
  Long-Running Transactions: If a transaction that locks the change sequence graph is taking too long to complete, other processes may be unable to access it, resulting in this error.
  System Configuration: There may be specific configurations or settings in the SAP system that lead to locking behavior, especially if the system is set up to enforce strict locking mechanisms.
  
  Solution:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify and Release Locks: Use transaction codes like SM12 (to view and manage locks) to identify which user or process is holding the lock on the change sequence graph. If appropriate, you can release the lock, but be cautious as this may lead to data inconsistencies if the other process is still running.
  Check for Long-Running Transactions: Investigate if there are any long-running transactions that are holding the lock. You can use transaction SM66 to monitor active processes in the system.
  Review System Configuration: If this issue occurs frequently, it may be worth reviewing the system configuration related to change sequence management to ensure it is optimized for your business processes.
  Consult Documentation: Refer to SAP documentation or notes related to change sequence management for any specific recommendations or known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM66 (global work process overview), and SM21 (system log) for troubleshooting.
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue. You can search for notes related to change sequence management or locking issues.
  User Training: Ensure that users are trained on how to properly manage change sequences to minimize the risk of locking issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.