How To Fix RSAN_WB090 - Invalid join field &1 for source &2 is being deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_WB - Messages for Analysis Designer

• Message number: 090

• Message text: Invalid join field &1 for source &2 is being deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_WB090 - Invalid join field &1 for source &2 is being deleted ?

  The SAP error message RSAN_WB090 indicates that there is an issue with a join field in a DataSource or InfoProvider in SAP BW (Business Warehouse). Specifically, it means that the join field specified is invalid for the source object, and as a result, it is being deleted from the data model.
  Cause:
  
  Invalid Join Field: The join field specified in the DataSource or InfoProvider does not exist or is not valid for the source object. This can happen if the field has been removed or renamed in the underlying database or if there is a mismatch in the data model.
  Changes in Source System: If there have been changes in the source system (like changes in the database schema), the join fields may no longer be valid.
  DataSource Configuration: The DataSource may not be configured correctly, leading to invalid join fields.
  
  Solution:
  
  Check the DataSource Configuration: Review the configuration of the DataSource or InfoProvider to ensure that the join fields are correctly defined and exist in the source system.
  Validate Source Fields: Verify that the fields you are trying to join on are present in the source system and have not been deleted or renamed.
  Update the DataSource: If the source fields have changed, you may need to update the DataSource in SAP BW to reflect these changes. This may involve re-importing the DataSource or manually adjusting the join fields.
  Check for Transport Issues: If the issue arose after a transport, ensure that all necessary objects were transported correctly and that there are no inconsistencies.
  Rebuild the Data Model: In some cases, it may be necessary to rebuild the DataSource or InfoProvider to ensure that all join fields are valid.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to manage and troubleshoot DataSources and InfoProviders.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to SAP BW documentation for best practices on managing DataSources and InfoProviders, especially regarding join fields and data modeling.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.