How To Fix STC036 - Cannot make changes because zero downtime maintenance is still running

SAP Error Message - Details

• Message type: E = Error

• Message class: STC - Error Messages

• Message number: 036

• Message text: Cannot make changes because zero downtime maintenance is still running

What causes this issue?

A Zero Downtime Maintenance (ZDM) operation is running. During such a
operation no write access to this system is allowed.

System Response

Your intended activity is currently not possible. The activity is
cancelled.

How to fix this error?

Wait for the end of the operation or try a display activity instead.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message STC036 - Cannot make changes because zero downtime maintenance is still running ?

  The SAP error message STC036 indicates that a zero downtime maintenance (ZDM) process is currently running, which prevents any changes from being made to the system. This is a protective measure to ensure that the system remains stable and consistent during the maintenance process.
  Cause:
  
  Ongoing Zero Downtime Maintenance: The primary cause of this error is that a ZDM process is actively running. ZDM is designed to allow for system updates and changes without taking the system offline, but it requires exclusive access to certain resources.
  Pending or Stuck Jobs: Sometimes, jobs related to the ZDM process may be stuck or not completed properly, leading to this error.
  Multiple ZDM Processes: If multiple ZDM processes are initiated, it can lead to conflicts and this error message.
  
  Solution:
  
  Check ZDM Status: Use transaction code ST22 or SM37 to check the status of the ZDM jobs. Look for any jobs that are currently running or have failed.
  Wait for Completion: If a ZDM process is running, you may need to wait for it to complete. Monitor the progress and ensure that it finishes successfully.
  Cancel Stuck Jobs: If you identify any jobs that are stuck or have failed, you may need to cancel them. Use transaction SM37 to find and cancel these jobs.
  Review Logs: Check the logs for the ZDM process to identify any issues that may have caused it to hang or fail. This can provide insights into what went wrong and how to address it.
  Restart ZDM Process: If necessary, you may need to restart the ZDM process after resolving any issues. Ensure that all prerequisites are met before doing so.
  Consult Documentation: Refer to SAP documentation or notes related to zero downtime maintenance for specific troubleshooting steps and best practices.
  
  Related Information:
  
  Zero Downtime Maintenance (ZDM): This is a method used in SAP to apply updates and changes without taking the system offline. It involves a series of steps that must be followed carefully to ensure system integrity.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or solutions related to the STC036 error.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be necessary to contact SAP support for further assistance.