How To Fix RSMD_RS_GEN003 - The key-field &1 datatype is not compatible with characteristic datatype.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSMD_RS_GEN - For generic value help

• Message number: 003

• Message text: The key-field &1 datatype is not compatible with characteristic datatype.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSMD_RS_GEN003 - The key-field &1 datatype is not compatible with characteristic datatype. ?

  The SAP error message RSMD_RS_GEN003 indicates that there is a mismatch between the data types of a key field and the characteristic in a data model, typically in the context of SAP BW (Business Warehouse) or SAP BW/4HANA. This error usually arises when you are trying to load data into a DataStore Object (DSO) or InfoCube, and the data types of the fields do not align correctly.
  Cause:
  
  Data Type Mismatch: The key field's data type does not match the expected data type of the characteristic. For example, if the key field is defined as a numeric type but the characteristic is defined as a string type, this error will occur.
  Inconsistent Data Model: Changes in the data model (like changes in the InfoObject definitions) that have not been reflected in the DSO or InfoCube can lead to this error.
  Transformation Issues: If you are using transformations to load data, the mapping between the source and target fields may not be correctly defined, leading to data type incompatibility.
  
  Solution:
  
  
  Check Data Types: Verify the data types of the key fields and the corresponding characteristics in the InfoObject definitions. Ensure that they are compatible. You can do this by:
  
  Navigating to the InfoObject in the SAP BW modeling tools.
  Checking the data type and length of both the key field and the characteristic.
  
  
  
  Adjust Data Model: If there is a mismatch, you may need to adjust the data model:
  
  Change the data type of the key field or the characteristic to ensure they match.
  If the characteristic is not being used correctly, consider redefining it.
  
  
  
  Review Transformations: If you are using transformations, check the mapping:
  
  Ensure that the source fields are correctly mapped to the target fields.
  Make sure that any transformations applied do not change the data type in a way that causes incompatibility.
  
  
  
  Re-activate Objects: After making changes, you may need to re-activate the InfoObjects, DSO, or InfoCube to ensure that the changes take effect.
  
  
  Test Data Load: After making the necessary adjustments, perform a test data load to confirm that the issue has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Documentation: Refer to SAP BW documentation for best practices on data modeling and transformations.
  Community Forums: Engage with SAP community forums or support channels for additional help and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the RSMD_RS_GEN003 error and ensure that your data loading processes function correctly.