How To Fix ISLM_API646 - &1 field &2 is a RAW datatype. This is not supported for &1 fields.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: ISLM_API - API Messages

  • Message number: 646

  • Message text: &1 field &2 is a RAW datatype. This is not supported for &1 fields.

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message ISLM_API646 - &1 field &2 is a RAW datatype. This is not supported for &1 fields. ?

    The SAP error message ISLM_API646 indicates that there is an issue with a field that is defined as a RAW datatype in the context of an API or function module. The error message suggests that the RAW datatype is not supported for the specific field in question.

    Cause:

    1. RAW Datatype: The RAW datatype is typically used for binary data in SAP. However, certain APIs or function modules may not support RAW datatypes for specific fields, leading to this error.
    2. Field Mismatch: The field being processed may be expected to be of a different datatype (e.g., CHAR, NUMC, etc.) rather than RAW.
    3. Data Conversion Issues: If there is an attempt to pass RAW data to a function that expects a different format, this error can occur.

    Solution:

    1. Check Field Definitions: Review the field definitions in the relevant data structures or tables. Ensure that the field in question is defined with the correct datatype that is compatible with the API or function module being used.
    2. Data Type Conversion: If you need to pass binary data, consider converting the RAW data to a supported format (e.g., HEX or BASE64) before passing it to the API.
    3. Modify API Calls: If you have control over the API or function module, consider modifying it to accept the RAW datatype if that is appropriate for your use case.
    4. Consult Documentation: Review the SAP documentation for the specific API or function module to understand the expected datatypes for each field and ensure compliance.
    5. Error Handling: Implement error handling in your code to catch this specific error and provide meaningful feedback or alternative processing.

    Related Information:

    • SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
    • Data Dictionary: Use transaction SE11 to explore the data dictionary and verify the definitions of the fields involved.
    • Debugging: If you have access to the ABAP code, consider debugging the program to see the exact point where the error occurs and inspect the values being passed to the API.

    If the issue persists after trying the above solutions, consider reaching out to SAP support or your internal SAP team for further assistance.

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