How To Fix RSAN_MDL091 - Invalid join condition for field &1 for source &2 is being deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_MDL - Messages on Analysis Object Model

• 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_MDL091 - Invalid join condition for field &1 for source &2 is being deleted ?

  The SAP error message RSAN_MDL091 indicates that there is an invalid join condition for a field in a data source, which is causing the system to delete the join condition. This 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:
  
  
  Incorrect Join Condition: The join condition defined for the field does not match the expected data types or values. For example, if you are trying to join a character field with a numeric field, this will lead to an invalid join condition.
  
  
  Missing or Incompatible Fields: The field specified in the join condition may not exist in the source data or may not be compatible with the other fields in the join.
  
  
  Data Source Changes: If the underlying data source has been modified (e.g., fields added, removed, or changed), it can lead to invalid join conditions.
  
  
  Modeling Errors: Errors in the data modeling process, such as incorrect relationships between InfoObjects or incorrect settings in the InfoProvider.
  
  
  Solution:
  To resolve the RSAN_MDL091 error, you can take the following steps:
  
  
  Check Join Conditions: Review the join conditions defined for the field in question. Ensure that the data types and values are compatible. If necessary, modify the join condition to correct any discrepancies.
  
  
  Validate Data Source: Ensure that the data source being used is correctly defined and that all required fields are present. If the data source has changed, update the join conditions accordingly.
  
  
  Review Data Model: Check the overall data model for any inconsistencies or errors. Ensure that all relationships between InfoObjects are correctly defined.
  
  
  Recreate Join Conditions: If the join condition is still causing issues, consider deleting the existing join condition and recreating it from scratch.
  
  
  Check for Updates: Ensure that your SAP BW system is up to date with the latest patches and updates, as some issues may be resolved in newer versions.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for additional guidance on the specific error message and potential fixes.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSAN_MDL091 for any specific fixes or recommendations provided by SAP.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  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_MDL091 error in your SAP BW environment.