How To Fix TG521 - Indexes may not be deleted in this upgrade status (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 521

• Message text: Indexes may not be deleted in this upgrade status (&)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TG521 - Indexes may not be deleted in this upgrade status (&) ?

  The SAP error message TG521 indicates that there are indexes in the database that cannot be deleted due to the current upgrade status of the system. This typically occurs during a system upgrade or when performing certain database operations where the system expects certain indexes to be present.
  Cause:
  
  Upgrade Status: The system is in a specific upgrade status where certain database operations are restricted. This can happen if the upgrade process has not been completed or if there are pending tasks that need to be resolved.
  Database Integrity: The system may be trying to maintain the integrity of the database by preventing the deletion of indexes that are still required for the current operations or data structures.
  Custom Indexes: If there are custom indexes that were created, they may not be recognized by the upgrade process, leading to this error.
  
  Solution:
  
  Check Upgrade Status: Ensure that the upgrade process is fully completed. You can check the upgrade logs for any errors or warnings that might indicate why the upgrade is not complete.
  Review Indexes: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to review the indexes in question. Determine if they are necessary or if they can be safely deleted.
  Adjust Upgrade Steps: If the upgrade is still in progress, follow the necessary steps to complete it. This may involve executing specific upgrade programs or correcting any issues that are preventing the completion.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide guidance on resolving common issues encountered during upgrades.
  Database Administration: If you have access to database administration tools, you may want to check the database logs for any additional information regarding the indexes and their status.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE14, and ST22 (Dump Analysis) to help diagnose and resolve issues.
  SAP Notes: Regularly check the SAP Support Portal for notes related to your specific version and the error message TG521.
  Upgrade Documentation: Review the upgrade documentation provided by SAP for your specific version to ensure that all steps are being followed correctly.
  
  By following these steps, you should be able to identify the cause of the TG521 error and take appropriate action to resolve it.