How To Fix 44180 - Dictionary locked (maintenance not possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: 44 - Dictionary authorization messages

• Message number: 180

• Message text: Dictionary locked (maintenance not possible)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 44180 - Dictionary locked (maintenance not possible) ?

  The SAP error message "44180 Dictionary locked (maintenance not possible)" typically occurs when there is an attempt to make changes to the Data Dictionary (like creating or modifying database objects) while the dictionary is locked. This lock can be due to various reasons, such as ongoing maintenance activities, system upgrades, or other administrative tasks that require exclusive access to the Data Dictionary.
  Causes:
  
  Ongoing Maintenance: A user or process is currently performing maintenance activities that require exclusive access to the Data Dictionary.
  System Upgrade: The system might be undergoing an upgrade or patching process that locks the Data Dictionary.
  Transaction in Progress: A long-running transaction or a background job might be holding the lock.
  Lock Table Issues: There could be issues with the lock table in the database, causing it to not release locks properly.
  
  Solutions:
  
  Wait for Maintenance to Complete: If the lock is due to ongoing maintenance, the simplest solution is to wait until the maintenance is completed.
  Check for Active Sessions: Use transaction codes like SM12 to check for active locks. If you find any sessions that are holding locks unnecessarily, you can terminate them if you have the necessary authorizations.
  Check Background Jobs: Use transaction SM37 to check for any background jobs that might be running and holding locks. If you identify any jobs that can be stopped, you can do so.
  System Logs: Check the system logs (transaction SM21) for any messages that might indicate why the dictionary is locked.
  Restart the System: In some cases, if the lock persists and cannot be resolved, a system restart may be necessary. However, this should be done with caution and typically as a last resort.
  Contact Basis Team: If you are unable to resolve the issue, it may be necessary to contact your SAP Basis team for assistance. They can provide insights into system-level locks and help resolve the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks), SM21 (to view system logs), and SM37 (to monitor background jobs).
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates their knowledge base with solutions and workarounds for common problems.
  Documentation: Review SAP documentation regarding Data Dictionary maintenance and locking mechanisms to better understand how to manage and troubleshoot these situations.
  
  By following these steps, you should be able to identify the cause of the lock and take appropriate action to resolve the error message.