How To Fix DB_SCHEMA_MAP018 - Upgrade running. Changes to the logical schema are not allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: DB_SCHEMA_MAP -

• Message number: 018

• Message text: Upgrade running. Changes to the logical schema are not allowed.

Self-Explanatory Message

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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 DB_SCHEMA_MAP018 - Upgrade running. Changes to the logical schema are not allowed. ?

  The SAP error message DB_SCHEMA_MAP018 typically occurs during an upgrade process when there are attempts to make changes to the logical schema of the database. This error indicates that the upgrade process is currently running, and modifications to the logical schema are not permitted at this time.
  Cause:
  
  Ongoing Upgrade Process: The most common cause of this error is that an upgrade is currently in progress, and the system is locked to prevent changes to the database schema.
  Concurrent Operations: There may be other operations or transactions that are trying to modify the database schema while the upgrade is running.
  Configuration Issues: There might be misconfigurations in the upgrade process or the database settings that lead to this error.
  
  Solution:
  
  Wait for Upgrade Completion: The simplest solution is to wait until the upgrade process is completed. Once the upgrade is finished, you should be able to make changes to the logical schema without encountering this error.
  Check Upgrade Logs: Review the upgrade logs to ensure that the upgrade is progressing as expected and to identify any potential issues that may need to be addressed.
  Avoid Concurrent Changes: Ensure that no other operations are trying to modify the database schema during the upgrade. This includes checking for other users or processes that might be running.
  Restart the Upgrade: If the upgrade seems to be stuck or has failed, you may need to restart the upgrade process. Make sure to follow the proper procedures for restarting an upgrade to avoid data corruption.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP Upgrade Documentation: Refer to the official SAP upgrade documentation for guidelines on performing upgrades and handling errors.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to address the DB_SCHEMA_MAP018 error and proceed with your upgrade successfully.