How To Fix RSAN_WB091 - Invalid join condition for 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: 091

• Message text: Invalid join condition for 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_WB091 - Invalid join condition for field &1 for source &2 is being deleted ?

  The SAP error message RSAN_WB091 indicates that there is an invalid join condition for a field in a data source, which is causing the system to delete that join condition. This error typically occurs in the context of SAP BW (Business Warehouse) when working with InfoObjects, DataSources, or transformations.
  Cause:
  The error can be caused by several factors, including:
  
  Invalid Join Condition: The join condition specified for the field is not valid. This could be due to incorrect field mappings or incompatible data types.
  Field Deletion: The field referenced in the join condition may have been deleted or modified in the underlying data source.
  Data Source Changes: Changes in the structure of the data source (like adding or removing fields) can lead to invalid join conditions.
  Inconsistent Data Types: The data types of the fields being joined may not match, leading to an invalid join condition.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Join Conditions: Review the join conditions in the transformation or data flow where the error is occurring. Ensure that the fields being joined are correctly specified and that their data types are compatible.
  
  
  Validate Data Source: Ensure that the data source (e.g., InfoProvider, DataSource) is correctly defined and that all required fields are present. If any fields have been deleted or modified, update the join conditions accordingly.
  
  
  Recreate Join Conditions: If the join condition is invalid, consider deleting the existing join condition and recreating it with the correct field mappings.
  
  
  Check for Updates: If you are using a version of SAP BW that has had recent updates or changes, check the release notes or documentation for any changes that might affect your data model.
  
  
  Use Transaction Codes: Utilize transaction codes like RSA1 (Data Warehousing Workbench) to analyze and correct the data model. You can also use RSA3 to test the data source and see if it returns the expected results.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to your version of SAP BW and the specific data source you are working with.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to avoid similar issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the RSAN_WB091 error message in your SAP BW environment.