How To Fix DT520 - Index &-& was activated

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 520

• Message text: Index &-& was activated

What causes this issue?

Index activation was successful.

System Response

Pure information

How to fix this error?

No action necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT520 - Index &-& was activated ?

  The SAP error message DT520 typically indicates that an index has been activated in the system. This message is often related to database performance and optimization, particularly in the context of database indexing.
  Cause:
  The DT520 error message usually arises when:
  
  An index is being activated or has been activated in the database.
  There may be issues with the index itself, such as corruption or misconfiguration.
  The system is trying to access or utilize an index that is not properly set up or is in a transitional state.
  
  Solution:
  To resolve the DT520 error, you can take the following steps:
  
  
  Check Index Status: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to check the status of the index. Ensure that the index is active and properly configured.
  
  
  Rebuild the Index: If the index is corrupted or not functioning correctly, you may need to rebuild it. This can be done using the database utility or through specific SQL commands, depending on your database system (e.g., Oracle, SQL Server, etc.).
  
  
  Analyze Database Performance: Use transaction ST04 (Database Performance Analysis) to analyze the performance of your database and identify any potential issues related to indexing.
  
  
  Check for Locks: Sometimes, locks on the database can prevent proper index activation. Use transaction SM12 to check for any locks that might be affecting the index.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address the specific issue related to the DT520 error. There may be patches or updates available that can resolve the problem.
  
  
  System Restart: In some cases, a system restart may help clear temporary issues that are causing the error.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE14, ST04, and SM12 for managing database objects and performance.
  Database Documentation: Review the documentation for your specific database system to understand how indexing works and how to manage it effectively.
  Performance Tuning: Regularly monitor and tune your database performance to prevent issues related to indexing and ensure optimal system performance.
  
  By following these steps, you should be able to address the DT520 error and ensure that your SAP system is functioning correctly with respect to indexing.