How To Fix CCMM155 - Structure gap already exists and is currently locked

SAP Error Message - Details

• Message type: E = Error

• Message class: CCMM - Message Class for A&D CCM

• Message number: 155

• Message text: Structure gap already exists and is currently locked

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCMM155 - Structure gap already exists and is currently locked ?

  The SAP error message CCMM155: Structure gap already exists and is currently locked typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with cost center accounting or internal orders. This error indicates that there is an attempt to create or modify a structure gap (a gap in the structure of cost centers or internal orders) that is currently locked, preventing changes.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing or modifying the same structure, leading to a lock.
  Incomplete Transactions: A previous transaction that created a structure gap may not have been completed properly, leaving it in a locked state.
  System Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a structure gap is being processed, it will be locked until the operation is completed.
  
  Solutions:
  
  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.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can look for locks related to the specific structure gap and see if they can be released.
  
  If you find a lock that is no longer needed (e.g., from a user who has logged off unexpectedly), you can delete the lock entry.
  
  
  Review Background Jobs: Check if there are any background jobs that might be holding the lock. You can use transaction code SM37 to review the status of background jobs.
  Transaction Rollback: If a previous transaction is incomplete, you may need to roll it back or complete it to release the lock.
  Consult with Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate further, as they can provide insights into system-level locks and performance issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SE11: To check the structure definitions if needed.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to the Controlling module for more context on structure gaps and their management.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.