How To Fix RSAN_MDL090 - Invalid join 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: 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_MDL090 - Invalid join field &1 for source &2 is being deleted ?

  The SAP error message RSAN_MDL090 indicates that there is an issue with a join field in a data model, specifically that the join field is invalid for the specified source. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with data models, transformations, or queries.
  Cause:
  
  Invalid Join Field: The join field specified in the data model does not exist in the source data or is not correctly defined.
  Data Source Changes: The underlying data source may have been modified (e.g., fields added, removed, or renamed), leading to the join field being invalid.
  Model Configuration Issues: There may be configuration issues in the data model or transformation that are causing the join field to be recognized as invalid.
  Data Type Mismatch: The data types of the join fields in the source and target may not match, leading to an invalid join condition.
  
  Solution:
  
  Check the Data Model: Review the data model configuration to ensure that the join fields are correctly defined and exist in the source data.
  Validate Data Source: Verify that the data source has not changed. If it has, update the data model to reflect the current structure of the data source.
  Adjust Join Conditions: If the join field is no longer valid, consider removing it or replacing it with a valid field that exists in both the source and target.
  Data Type Verification: Ensure that the data types of the join fields match between the source and target. If there is a mismatch, you may need to convert the data types accordingly.
  Rebuild the Model: In some cases, it may be necessary to rebuild the data model or transformation to ensure that all configurations are correct and up to date.
  Check for Updates: If you are using a version of SAP that is subject to updates, check for any patches or updates that may address known issues related to data modeling.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or known issues related to the RSAN_MDL090 error. SAP Notes often provide detailed troubleshooting steps and solutions.
  Documentation: Refer to the SAP BW or SAP HANA documentation for best practices on data modeling and transformations.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the root cause of the RSAN_MDL090 error and implement a solution to resolve it.