How To Fix DT531 - Indexes to non-transparent tables are deleted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 531

• Message text: Indexes to non-transparent tables are deleted

What causes this issue?

Secondary indexes were defined for a nontransparent table.

System Response

It makes no sense to define secondary indexes for transparent tables.
The index definition is therefore deleted in the ABAP Dictionary.

How to fix this error?

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 DT531 - Indexes to non-transparent tables are deleted ?

  The SAP error message DT531 indicates that indexes associated with non-transparent tables have been deleted. This typically occurs during database operations, such as when a table is modified or when certain database maintenance tasks are performed. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Non-Transparent Tables: Non-transparent tables are database tables that do not have a direct one-to-one mapping with the underlying database structure. They are often used for specific purposes, such as storing application-specific data or for performance optimization.
  Index Deletion: The error occurs when the system attempts to delete indexes that are associated with these non-transparent tables. This can happen due to:
  
  Changes in the table structure.
  Database maintenance activities.
  Incorrect configuration or settings in the database or SAP system.
  
  
  
  Solution:
  
  
  Recreate Indexes: If indexes have been deleted, you may need to recreate them. This can typically be done through the SAP transaction codes:
  
  SE11: Data Dictionary. You can check the table and its indexes here.
  SE14: Database Utility. This transaction allows you to manage database objects, including indexes.
  DB02: Database Performance Monitor. This can help you analyze the database and identify missing indexes.
  
  
  
  Check for Consistency: Ensure that the database and the SAP data dictionary are consistent. You can use the transaction SE14 to check and adjust the database objects.
  
  
  Review Transport Requests: If the issue arose after a transport, review the transport requests to ensure that they were correctly imported and that no objects were inadvertently deleted.
  
  
  Database Administration: Consult with your database administrator to check for any database-level issues or maintenance tasks that might have led to the deletion of indexes.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that can resolve the issue.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on managing database objects and understanding the implications of non-transparent tables.
  Performance Impact: Deleting indexes can impact the performance of database queries. It’s essential to monitor the performance after resolving the issue.
  Backup and Recovery: Always ensure that you have a backup of your database before making significant changes, such as recreating indexes or modifying table structures.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.