How To Fix RSDHA238 - Required data type conversion for target field '&1' not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 238

• Message text: Required data type conversion for target field '&1' not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA238 - Required data type conversion for target field '&1' not supported ?

  The SAP error message RSDHA238 indicates that there is a required data type conversion for a target field that is not supported. This typically occurs in the context of data extraction or transformation processes, particularly when working with SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Incompatible Data Types: The source field's data type does not match the target field's data type in the InfoObject or DataStore Object (DSO). For example, trying to map a character field to a numeric field without proper conversion.
  
  
  Unsupported Conversions: The specific conversion required between the source and target fields is not supported by SAP. This can happen if the data types are fundamentally different (e.g., trying to convert a string to a date).
  
  
  Modeling Issues: There may be issues in the data model, such as incorrect field mappings or transformations that do not handle the data types correctly.
  
  
  Solution:
  To resolve the RSDHA238 error, you can take the following steps:
  
  
  Check Field Mappings: Review the mappings between the source and target fields in your InfoPackage or transformation. Ensure that the data types are compatible.
  
  
  Adjust Data Types: If necessary, adjust the data types in the source or target to ensure compatibility. This may involve changing the data type of the target field in the InfoObject or DSO.
  
  
  Use Transformations: If the data types are different but you need to keep them that way, consider using transformations to convert the data explicitly. You can create a transformation that includes a conversion routine to handle the data type change.
  
  
  Review Data Model: Ensure that your data model is correctly set up. Check for any inconsistencies in the InfoObjects, DSOs, or other data structures involved.
  
  
  Test with Sample Data: If possible, test the data load with a smaller set of data to identify if specific records are causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance on data type conversions and supported transformations.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data type conversions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW or HANA to avoid similar issues in the future.
  
  By following these steps, you should be able to identify the root cause of the RSDHA238 error and implement a suitable solution.