How To Fix KA490 - Customizing locked during ZDM upgrade

SAP Error Message - Details

• Message type: E = Error

• Message class: KA - CO Overhead Costs: Overhead, Accrual Calculation

• Message number: 490

• Message text: Customizing locked during ZDM upgrade

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KA490 - Customizing locked during ZDM upgrade ?

  The SAP error message KA490, which indicates that "Customizing locked during ZDM upgrade," typically occurs during a Zero Downtime Maintenance (ZDM) upgrade process. This error suggests that the system is unable to proceed with the upgrade because certain customizing settings are locked, preventing changes from being made.
  Cause:
  
  
  Locked Customizing Objects: The error usually arises when there are customizing objects that are locked due to ongoing processes or transactions. This can happen if:
  
  Another user or process is currently using the customizing settings.
  There are open transport requests that have not been released.
  The system is in a state where it cannot modify certain settings due to the upgrade process.
  
  
  
  Inconsistent State: The system may be in an inconsistent state due to previous upgrade attempts or issues that were not resolved.
  
  
  Transport Management Issues: If there are issues with the transport management system, such as locks on transport requests, this can also lead to this error.
  
  
  Solution:
  
  
  Check Locks: Use transaction code SM12 to check for any locks on the customizing objects. If you find locks that are not needed, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  
  
  Release Transport Requests: Ensure that all transport requests related to customizing are released. You can check this in transaction SE09 or SE10.
  
  
  Check for Active Processes: Use transaction SM66 to check for any active processes that might be holding locks on the customizing objects. If you find any, you may need to wait for them to complete or terminate them if they are stuck.
  
  
  Review Upgrade Logs: Check the upgrade logs for any additional information or errors that might provide more context on why the customizing is locked.
  
  
  Restart the Upgrade Process: If the above steps do not resolve the issue, you may need to restart the ZDM upgrade process after ensuring that all locks and transport issues are resolved.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that might address this specific error. SAP frequently updates their knowledge base with solutions for common issues encountered during upgrades.
  
  
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on your system configuration and the details of the error.
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with the following transaction codes:
  
  SM12: To check and manage locks.
  SE09/SE10: To manage transport requests.
  SM66: To monitor active processes in the system.
  
  
  
  Documentation: Review the official SAP documentation on Zero Downtime Maintenance and upgrade procedures to ensure that all prerequisites and steps are followed correctly.
  
  
  System Health Check: Before performing upgrades, it's a good practice to conduct a system health check to identify and resolve any existing issues that could interfere with the upgrade process.
  
  
  By following these steps, you should be able to address the KA490 error and successfully proceed with your ZDM upgrade.