How To Fix RSDDTPS021 - Could not create conversion index for key figure &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDDTPS - Messages for Polestar Index Maintenance

• Message number: 021

• Message text: Could not create conversion index for key figure &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDDTPS021 - Could not create conversion index for key figure &1 ?

  The SAP error message RSDDTPS021, which states "Could not create conversion index for key figure &1," typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the conversion of key figures in a data model or InfoProvider. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the underlying data model.
  Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data that prevent the conversion index from being created. This can include missing or incorrect data in the underlying tables.
  Key Figure Configuration: The key figure itself may not be properly configured in the InfoObject or InfoProvider.
  Data Type Mismatch: There may be a mismatch in data types between the key figure and the data being processed.
  Missing Aggregates: If the key figure relies on aggregates that are not properly defined or are missing, this can lead to the error.
  Authorization Issues: Sometimes, authorization issues can prevent the system from accessing the necessary data to create the conversion index.
  
  Solutions:
  
  Check Data Consistency: Verify the data in the underlying tables for the key figure. Ensure that there are no missing or incorrect entries.
  Review Key Figure Configuration: Go to the InfoObject maintenance and check the configuration of the key figure. Ensure that all settings are correct, including data types and aggregation settings.
  Rebuild Aggregates: If the key figure relies on aggregates, try to rebuild them. This can often resolve issues related to missing or outdated aggregates.
  Check for Data Type Issues: Ensure that the data types of the key figure and the data being processed are compatible. If there are discrepancies, correct them.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data required for the conversion index creation.
  Run Data Load Again: If the error occurred during a data load process, try running the data load again after addressing any identified issues.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like RSA1 (Data Warehousing Workbench) to check the InfoObjects and InfoProviders.
  Logs and Traces: Check the logs and traces for more detailed error messages that can provide additional context on the issue.
  SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW team for further investigation.