How To Fix RSBBS400 - Unnecessary fields were deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: RSBBS - BW: Reports-Reports-Interface

• Message number: 400

• Message text: Unnecessary fields were deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSBBS400 - Unnecessary fields were deleted ?

  The SAP error message RSBBS400, which states "Unnecessary fields were deleted," typically occurs in the context of SAP BW (Business Warehouse) when there are issues related to the data model or the InfoProvider configuration. This error can arise during the process of data extraction, transformation, or loading (ETL) when certain fields that are deemed unnecessary are removed from the data model.
  Cause:
  
  Field Deletion: The error usually indicates that fields that are not required for the data model or InfoProvider have been deleted. This can happen if the data source or InfoProvider has been modified, and the system is trying to reconcile the changes.
  Inconsistent Data Model: If there are inconsistencies between the data source and the InfoProvider, such as missing fields or mismatched data types, this error may occur.
  Data Source Changes: Changes in the underlying data source (like a database table or view) that affect the fields available for extraction can lead to this error.
  Transformation Rules: If the transformation rules in the ETL process are not aligned with the current structure of the data source, it can lead to unnecessary fields being flagged for deletion.
  
  Solution:
  
  Check Data Source: Verify the structure of the data source to ensure that all required fields are present and correctly defined.
  Update InfoProvider: If fields have been deleted from the data source, you may need to update the InfoProvider to reflect these changes. This can involve modifying the InfoObject definitions or the data model.
  Review Transformations: Check the transformation rules to ensure they are correctly mapping the fields from the data source to the InfoProvider. Adjust any mappings as necessary.
  Re-activate Objects: Sometimes, re-activating the InfoObjects, InfoProviders, and transformations can resolve inconsistencies. This can be done in the SAP BW modeling tools.
  Check for Dependencies: Ensure that there are no dependencies on the deleted fields in other parts of the data model or reports. If there are, you may need to adjust those as well.
  Consult Documentation: Review SAP documentation or notes related to the specific version of SAP BW you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Testing: After making changes, perform thorough testing to ensure that the data extraction and reporting processes work as expected without any further errors.
  
  By following these steps, you should be able to identify the root cause of the RSBBS400 error and implement a solution to resolve it.