How To Fix RSDHA390 - Data types of InfoObject '&1' and field '&2' are not compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 390

• Message text: Data types of InfoObject '&1' and field '&2' are not compatible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA390 - Data types of InfoObject '&1' and field '&2' are not compatible ?

  The SAP error message RSDHA390 indicates that there is a data type mismatch between an InfoObject and a field in a data source or transformation. This typically occurs when you are trying to map fields from a source system to InfoObjects in SAP BW (Business Warehouse) and the data types do not align.
  Cause:
  
  Data Type Mismatch: The most common cause is that the data type of the InfoObject (e.g., CHAR, NUMC, DATS) does not match the data type of the field in the source system or the transformation.
  Field Length Differences: Even if the data types are the same, differences in field lengths can also lead to this error.
  Incorrect Mapping: The mapping in the transformation might be incorrectly set up, leading to an attempt to map incompatible data types.
  
  Solution:
  
  
  Check Data Types: Verify the data types of both the InfoObject and the source field. You can do this by:
  
  Going to the InfoObject definition in the SAP BW system and checking its properties.
  Checking the source system field properties in the data source or the underlying database.
  
  
  
  Adjust Data Types: If there is a mismatch:
  
  Modify the InfoObject to match the data type of the source field if feasible.
  Alternatively, you can adjust the source field or transformation to ensure compatibility.
  
  
  
  Modify Transformation: If the mapping is incorrect:
  
  Open the transformation that is causing the error and check the mapping for the specific InfoObject and field.
  Ensure that the correct fields are mapped and that the data types are compatible.
  
  
  
  Field Length Adjustment: If the lengths are different, consider adjusting the length of the InfoObject or the source field to ensure they match.
  
  
  Test the Data Load: After making the necessary adjustments, test the data load again to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to access InfoObjects and transformations.
  Data Source: Check the data source definition in transaction RSA3 to see the structure of the data being pulled.
  Documentation: Refer to SAP documentation for detailed information on InfoObjects and data types.
  SAP Notes: Search for relevant SAP Notes that might address specific issues related to data type compatibility.
  
  By following these steps, you should be able to resolve the RSDHA390 error and ensure that your data loads successfully.