How To Fix RS_HCPR_MODEL201 - Different data types of join fields ('&1' assigned to '&2')

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_HCPR_MODEL - Messages related to the HANA Composite Provider Backend

• Message number: 201

• Message text: Different data types of join fields ('&1' assigned to '&2')

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_HCPR_MODEL201 - Different data types of join fields ('&1' assigned to '&2') ?

  The SAP error message RS_HCPR_MODEL201 indicates that there is a mismatch in the data types of the fields being used in a join condition within a query or data model. Specifically, it means that the field &1 (the field from one table) is assigned a different data type than the field &2 (the field from another table) that it is being joined with.
  Cause:
  This error typically arises in the following scenarios:
  
  Data Type Mismatch: The fields being joined have different data types (e.g., one is a character type and the other is a numeric type).
  Inconsistent Field Definitions: The fields may have been defined differently in the underlying database tables or InfoObjects.
  Modeling Errors: Errors in the data model or query design where fields from different sources are incorrectly joined.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Types: Verify the data types of the fields involved in the join. You can do this by checking the data dictionary (SE11) or the respective InfoObjects in the SAP BW system.
  
  
  Adjust Data Types: If the data types are indeed different, you may need to:
  
  Change the data type of one of the fields to match the other, if feasible.
  Use a conversion function in your query or data model to convert one field to the data type of the other (e.g., using CAST or CONVERT functions).
  
  
  
  Review Join Conditions: Ensure that the join conditions in your query or data model are correctly defined and that you are joining compatible fields.
  
  
  Rebuild the Query: If the issue persists, consider rebuilding the query or data model from scratch to ensure that all joins are correctly defined.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for additional guidance on handling data type mismatches in joins.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or RSA1 (Data Warehousing Workbench) to investigate the data model and field definitions.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional solutions related to this error.
  Testing: After making changes, test the query or data model to ensure that the error is resolved and that the data is being retrieved correctly.
  
  By following these steps, you should be able to identify and resolve the cause of the RS_HCPR_MODEL201 error in your SAP environment.