How To Fix FDT_EXPRESSIONS811 - Function call &1 not possible, &2 parameter &3 has a raw type

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 811

• Message text: Function call &1 not possible, &2 parameter &3 has a raw type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS811 - Function call &1 not possible, &2 parameter &3 has a raw type ?

  The SAP error message FDT_EXPRESSIONS811 indicates that there is an issue with a function call in your SAP application. Specifically, the error states that the function call is not possible because one of the parameters being passed to the function has a "raw type." This typically occurs in the context of using expressions in the SAP Fiori or SAP UI5 applications, particularly when dealing with data types in ABAP or when using the FDT (Form Data Tool).
  Cause:
  
  Raw Type Parameter: The error is triggered when a function is called with a parameter that is of a raw type (e.g., RAW, XSTRING, etc.). These types are not compatible with the expected data types for the function being called.
  Data Type Mismatch: The function you are trying to invoke expects a specific data type for its parameters, and passing a raw type does not meet those expectations.
  Incorrect Function Usage: The function may not be designed to handle raw types, leading to this error when such types are passed.
  
  Solution:
  
  Check Parameter Types: Review the function definition to understand the expected parameter types. Ensure that the parameters you are passing match the expected types.
  Convert Raw Types: If you need to pass a raw type, consider converting it to a compatible type. For example, if the function expects a string, you can convert the raw type to a string using appropriate conversion functions.
  
  Example: Use CONVERT or CAST statements to change the type.
  
  
  Modify Function Call: If possible, modify the function call to use the correct data types. This may involve changing how data is prepared before the function call.
  Debugging: Use debugging tools to trace the values and types of parameters being passed to the function. This can help identify where the raw type is being introduced.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific function you are using to understand its parameter requirements.
  ABAP Data Types: Familiarize yourself with ABAP data types and their compatibility to avoid similar issues in the future.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.