How To Fix FDT_WD_EXPRESSION031 - Result value &1 is not compatible with new result type -> Initialized

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_EXPRESSION -

• Message number: 031

• Message text: Result value &1 is not compatible with new result type -> Initialized

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_EXPRESSION031 - Result value &1 is not compatible with new result type -> Initialized ?

  The SAP error message FDT_WD_EXPRESSION031 indicates that there is a type mismatch in the result value of an expression in the context of the SAP Fiori or SAP UI5 applications. Specifically, the error message states that the result value &1 is not compatible with the new result type, which is initialized.
  Cause:
  This error typically occurs when:
  
  Type Mismatch: The expression is trying to return a value of a type that does not match the expected type. For example, if the expression is expected to return a numeric value but is returning a string or null.
  Initialization Issues: The variable or expression might not have been properly initialized before being used, leading to an unexpected type.
  Data Binding Issues: If the data binding is not set up correctly, it can lead to situations where the expected data type does not match the actual data type being returned.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Expression: Review the expression that is causing the error. Ensure that the data types of the values being returned are compatible with the expected result type.
  
  
  Initialization: Ensure that all variables or expressions are properly initialized before they are used. If a variable is expected to hold a certain type, make sure it is initialized to a value of that type.
  
  
  Data Binding: Verify the data binding configuration. Ensure that the model and the properties being bound are correctly defined and that the types match.
  
  
  Debugging: Use debugging tools to step through the code and inspect the values being returned by the expression. This can help identify where the type mismatch is occurring.
  
  
  Type Conversion: If necessary, implement type conversion to ensure that the values being returned match the expected types. For example, if a string is being returned but a number is expected, convert the string to a number.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific context in which the error occurs. There may be additional guidelines or best practices for handling expressions and data types.
  
  
  Related Information:
  
  SAP Fiori/UI5 Documentation: Check the official SAP documentation for Fiori and UI5 for more information on expressions, data binding, and type handling.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_WD_EXPRESSION031 error in your SAP application.