How To Fix FDT_WD_EXPRESSION075 - Object &1 is not compatible with the expected type

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_EXPRESSION -

• Message number: 075

• Message text: Object &1 is not compatible with the expected type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_EXPRESSION075 - Object &1 is not compatible with the expected type ?

  The SAP error message FDT_WD_EXPRESSION075 indicates that there is a type mismatch in the expression used in a Web Dynpro application. Specifically, it means that the object referenced (denoted as &1) is not compatible with the expected data type in the context where it is being used.
  Cause:
  This error typically arises due to one of the following reasons:
  
  Data Type Mismatch: The object being referenced in the expression does not match the expected data type. For example, if the expected type is a string but the object is an integer, this error will occur.
  Incorrect Binding: The binding of the data model to the UI element may be incorrect, leading to a situation where the UI expects a different type than what is provided.
  Expression Logic: The logic in the expression may be flawed, leading to an attempt to use an incompatible type.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Types: Review the data types of the object being referenced and ensure they match the expected types. You can do this by checking the data model and the UI element properties.
  
  
  Review Bindings: Ensure that the bindings in your Web Dynpro application are correctly set up. Verify that the data source and target are compatible in terms of data types.
  
  
  Modify Expressions: If the expression is using a function or operation that requires specific types, ensure that the inputs to that function or operation are of the correct type. You may need to cast or convert types as necessary.
  
  
  Debugging: Use the debugging tools available in the SAP environment to step through the code and identify where the type mismatch is occurring. This can help you pinpoint the exact location of the issue.
  
  
  Consult Documentation: If you are unsure about the expected types for certain operations or functions, refer to the SAP documentation or help resources for guidance.
  
  
  Related Information:
  
  Web Dynpro Documentation: Familiarize yourself with the Web Dynpro programming model and data binding concepts.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error message.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_WD_EXPRESSION075 error in your SAP Web Dynpro application.