How To Fix RS_HCPR_MODEL090 - Source field '&1' and join field '&2' do not have the same length

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 090

• Message text: Source field '&1' and join field '&2' do not have the same length

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_HCPR_MODEL090 - Source field '&1' and join field '&2' do not have the same length ?

  The SAP error message RS_HCPR_MODEL090 indicates that there is a mismatch in the lengths of the source field and the join field in a data model or query. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when you are trying to join two fields that are expected to have the same data type and length, but they do not.
  Cause:
  
  Field Length Mismatch: The source field (e.g., from a data source or InfoObject) and the join field (e.g., from a target InfoObject or another data source) have different lengths. For example, if one field is defined as CHAR(10) and the other as CHAR(20), this error will occur.
  Data Type Differences: The fields may also have different data types (e.g., one is a character type and the other is numeric).
  Modeling Errors: There may be an error in the data model where the fields were not correctly defined or mapped.
  
  Solution:
  
  
  Check Field Definitions: Review the definitions of both the source field and the join field in the data model. Ensure that they have the same data type and length.
  
  You can do this by navigating to the relevant InfoObject or data source in the SAP BW modeling tools.
  
  
  
  Adjust Field Lengths: If you find that the lengths are different, you may need to adjust one of the fields to match the other. This could involve:
  
  Changing the length of the source field or the join field in the data model.
  If the source field is coming from a database table, you may need to adjust the database schema or create a transformation to handle the length difference.
  
  
  
  Data Transformation: If changing the field definitions is not feasible, consider using a transformation to convert the data types or lengths before the join operation. This can be done using ABAP code or transformation rules in SAP BW.
  
  
  Rebuild the Model: In some cases, it may be necessary to rebuild the data model or the query to ensure that all fields are correctly aligned.
  
  
  Testing: After making changes, test the data model or query to ensure that the error is resolved and that the data is being processed correctly.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Refer to SAP BW or SAP HANA documentation for guidelines on data modeling and field definitions.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RS_HCPR_MODEL090 error and ensure that your data model functions correctly.