How To Fix FDT_EXPRESSIONS391 - The attribute 'exception on error' has to be of type Boolean


SAP Error Message - Details

  • Message type: E = Error

  • Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

  • Message number: 391

  • Message text: The attribute 'exception on error' has to be of type Boolean

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  • Self-Explanatory Message

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Smart SAP Assistant

  • What is the cause and solution for SAP error message FDT_EXPRESSIONS391 - The attribute 'exception on error' has to be of type Boolean ?

    The SAP error message FDT_EXPRESSIONS391 indicates that there is an issue with the configuration of an attribute in a data transformation or expression within the SAP system. Specifically, the error states that the attribute 'exception on error' must be of type Boolean, meaning it should only accept values that are either true or false.

    Cause:

    The error typically arises when:

    1. The attribute 'exception on error' is assigned a value that is not Boolean (e.g., a string, integer, or any other data type).
    2. There is a misconfiguration in the data transformation or expression logic where the expected data type is not adhered to.

    Solution:

    To resolve this error, you can follow these steps:

    1. Check the Configuration:

      • Navigate to the area where the data transformation or expression is defined.
      • Locate the attribute 'exception on error' and verify its configuration.
    2. Ensure Correct Data Type:

      • Make sure that the value assigned to 'exception on error' is either true or false.
      • If you are using a variable or expression to set this attribute, ensure that it evaluates to a Boolean value.
    3. Modify the Expression:

      • If you are using a complex expression to determine the value of 'exception on error', ensure that the final result of the expression is Boolean.
      • You may need to use logical operators or conditions to ensure the output is a Boolean.
    4. Test the Changes:

      • After making the necessary adjustments, test the transformation or expression to ensure that the error no longer occurs.

    Related Information:

    • Boolean Data Type: In programming and data processing, a Boolean data type represents two possible values: true or false. It is commonly used in conditional statements and logical operations.
    • SAP FDT (Flexible Data Transformation): This is a framework in SAP that allows users to define data transformations and mappings. Understanding how to configure expressions and attributes correctly is crucial for successful data processing.
    • Debugging: If the error persists after checking the configuration, consider using debugging tools available in SAP to trace the execution and identify where the incorrect data type is being assigned.

    By following these steps, you should be able to resolve the error message FDT_EXPRESSIONS391 and ensure that the attribute 'exception on error' is correctly configured as a Boolean type.

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