How To Fix FDT_WD_EXPRESSION079 - Object &1 is not compatible with the expected type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_EXPRESSION -

• Message number: 079

• Message text: Object &1 is not compatible with the expected type &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_EXPRESSION079 - Object &1 is not compatible with the expected type &2 ?

  The SAP error message FDT_WD_EXPRESSION079 indicates that there is a type mismatch in the context of a Web Dynpro application. Specifically, it means that an object of a certain type (denoted as &1) is being used where a different type (denoted as &2) is expected. This can occur in various scenarios, such as when binding data to UI elements or when performing operations that require specific data types.
  Cause
  The error typically arises from one of the following situations:
  
  Data Type Mismatch: The data type of the object being passed does not match the expected data type. For example, trying to assign a string to a numeric field.
  Incorrect Binding: The binding of UI elements to the model might be incorrect, leading to a situation where the expected type does not match the actual type of the bound data.
  Model 
  Configuration Issues: The model used in the Web Dynpro application may not be configured correctly,