How To Fix NRSCNV402 - Secondary indexes of tables of InfoCube &1 could not be dropped

SAP Error Message - Details

• Message type: E = Error

• Message class: NRSCNV - Message class

• Message number: 402

• Message text: Secondary indexes of tables of InfoCube &1 could not be dropped

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NRSCNV402 - Secondary indexes of tables of InfoCube &1 could not be dropped ?

  The SAP error message NRSCNV402 indicates that there was an issue with dropping secondary indexes of tables in an InfoCube during a data model change or during the process of data migration. This error typically arises in the context of SAP BW (Business Warehouse) or SAP BW/4HANA environments.
  Cause:
  The error can occur due to several reasons, including:
  
  Active Data or Queries: If there are active queries or data requests that depend on the secondary indexes, the system will not allow them to be dropped.
  Locks: There may be database locks on the tables or indexes that prevent the operation from completing.
  Dependencies: Other objects or processes may depend on the secondary indexes, preventing their removal.
  Technical Issues: There could be underlying technical issues with the database or the SAP system itself.
  
  Solution:
  To resolve the NRSCNV402 error, you can follow these steps:
  
  
  Check Active Queries: Ensure that there are no active queries or data requests that are using the InfoCube. You can check for active queries in the SAP BW system and terminate them if necessary.
  
  
  Release Locks: Use transaction codes like SM12 to check for and release any locks on the relevant tables or indexes.
  
  
  Check Dependencies: Review any dependencies that might exist for the secondary indexes. This can include checking for any InfoObjects, transformations, or data flows that might be using the indexes.
  
  
  Re-run the Process: After ensuring that there are no active queries, locks, or dependencies, try to re-run the process that was attempting to drop the secondary indexes.
  
  
  Database Administration: If the issue persists, consult with your database administrator to check for any underlying database issues that might be causing the problem.
  
  
  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.
  
  
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the failure.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), SM12 (Lock Entries), and SLG1 (Application Log).
  SAP BW Documentation: Review SAP BW documentation for best practices on managing InfoCubes and secondary indexes.
  Performance Considerations: Understand the role of secondary indexes in performance optimization for queries and data retrieval in SAP BW.
  
  If the problem continues after following these steps, it may be necessary to engage SAP support for further assistance.