How To Fix RSD_TREX452 - Index &1 exists but is no longer required.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 452

• Message text: Index &1 exists but is no longer required.

What causes this issue?

The index was not deleted when the object was converted.

System Response

Index: &v1&

How to fix this error?

Index the object again.

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 RSD_TREX452 - Index &1 exists but is no longer required. ?

  The SAP error message RSD_TREX452 indicates that an index in the SAP BW (Business Warehouse) system exists but is no longer required. This typically occurs when the underlying data model has changed, such as when a data source is deleted or modified, and the associated index is no longer needed.
  Cause:
  
  Data Model Changes: The most common cause is changes in the data model, such as the deletion of InfoObjects, InfoProviders, or data sources that were previously linked to the index.
  Data Source Deletion: If a data source that was used to create the index has been deleted, the index may still exist but is no longer relevant.
  Reorganization: Changes in the structure of the data warehouse, such as reorganizing InfoProviders or changing the data flow, can lead to obsolete indexes.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Index: Use transaction code RSD1 to check the InfoProvider associated with the index mentioned in the error message. This will help you understand which index is causing the issue.
  
  
  Delete the Obsolete Index:
  
  Go to transaction RSD1 and navigate to the InfoProvider.
  Check the indexes associated with the InfoProvider.
  If you confirm that the index is no longer needed, you can delete it. This can typically be done in the "Indexes" tab of the InfoProvider maintenance screen.
  
  
  
  Rebuild Indexes: If necessary, you can rebuild the indexes for the InfoProvider to ensure that the data is correctly indexed for reporting.
  
  
  Check for Dependencies: Before deleting an index, ensure that it is not being used by any queries or reports. You can check for dependencies in the BW system.
  
  
  Transport Changes: If you are working in a development environment, ensure that any changes made are transported to the production environment as needed.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSD1 (InfoProvider maintenance), RSA1 (Data Warehousing Workbench), and RSD3 (DataSource maintenance).
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Review SAP documentation on managing indexes in BW to understand best practices and maintenance procedures.
  
  By following these steps, you should be able to resolve the RSD_TREX452 error and ensure that your BW system is functioning correctly without obsolete indexes.