How To Fix NRSCNV401 - Secondary indexes of tables of InfoCube &1 dropped

SAP Error Message - Details

• Message type: E = Error

• Message class: NRSCNV - Message class

• Message number: 401

• Message text: Secondary indexes of tables of InfoCube &1 dropped

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NRSCNV401 - Secondary indexes of tables of InfoCube &1 dropped ?

  The SAP error message NRSCNV401 indicates that secondary indexes of tables in an InfoCube have been dropped during a conversion or data loading process. This typically occurs when there are changes in the structure of the InfoCube or when the system is optimizing the data model.
  Cause:
  
  Data Model Changes: The structure of the InfoCube may have been altered, such as adding or removing characteristics or key figures.
  Optimization: The system may be optimizing the InfoCube for performance reasons, which can lead to the dropping of secondary indexes.
  Data Loading Issues: Problems during data loading processes can also trigger this error, especially if the data does not conform to the expected structure.
  
  Solution:
  
  Recreate Secondary Indexes: After the conversion or data loading process, you may need to manually recreate the secondary indexes. This can typically be done through the Data Warehousing Workbench (transaction RSA1) or using specific ABAP programs designed for this purpose.
  Check InfoCube Structure: Review the structure of the InfoCube to ensure that it is correctly defined and that all necessary characteristics and key figures are included.
  Data Consistency Check: Run consistency checks on the InfoCube to ensure that there are no underlying issues with the data that could be causing the error.
  Review Change Logs: Check the change logs or transport logs to identify any recent changes that may have led to the dropping of the indexes.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on how to handle it. SAP Notes often contain patches or recommendations for known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSCUSTV10 (for customizing settings), and others that may help in managing InfoCubes.
  Performance Tuning: Understand the implications of secondary indexes on performance and how they can affect query performance in BW.
  Documentation: Refer to SAP documentation for best practices on managing InfoCubes and handling data loading processes.
  
  If the issue persists after following these steps, it may be beneficial to consult with SAP support or a technical consultant who specializes in SAP BW/BI for further assistance.