How To Fix FDT_EXPRESSIONS804 - Method &1 is not static

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 804

• Message text: Method &1 is not static

What causes this issue?

You have assigned method &v1& to the current procedure call expression.
However, the system has detected that this method is not declared as
static. Therefore, the method cannot be used by the procedure call.

System Response

The expression cannot be activated.

How to fix this error?

INCLUDE FDT_WD_PROC_CALL_DECL OBJECT DOKU ID TX

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS804 - Method &1 is not static ?

  The SAP error message FDT_EXPRESSIONS804 with the description "Method &1 is not static" typically occurs in the context of using the SAP Fiori Design Time (FDT) or when working with ABAP classes and methods in SAP systems. This error indicates that a method you are trying to call is not defined as a static method, but you are attempting to call it in a static context.
  Cause:
  
  Static vs. Instance Method: In ABAP, methods can be defined as either static or instance methods. Static methods belong to the class itself and can be called without creating an instance of the class. Instance methods require an object of the class to be created before they can be called.
  Incorrect Method Call: The error occurs when you try to call an instance method using the class name instead of an object reference.
  
  Solution:
  To resolve this error, you can take one of the following approaches:
  
  
  Change the Method Call:
  
  If the method is an instance method, you need to create an instance of the class before calling the method. For example:
  DATA(lo_instance) = NEW your_class_name( ).
  lo_instance->method_name( ).
  
  
  
  
  Change the Method Definition:
  
  
  If it makes sense for your application, you can change the method definition to be static. This can be done by modifying the method declaration in the class definition:
  CLASS your_class_name DEFINITION.
    ...
    METHODS: method_name FOR TESTING.
  ENDCLASS.
  
  CLASS your_class_name IMPLEMENTATION.
    METHOD method_name.
      " Your code here
    ENDMETHOD.
  ENDCLASS.
  
  
  Add the CLASS-METHODS keyword to define it as a static method:
  CLASS your_class_name DEFINITION.
    CLASS-METHODS: method_name.
  ENDCLASS.
  
  
  
  
  Review the Context:
  
  Ensure that you are calling the method in the correct context. If you are working with Fiori applications or UI5, check if the method is being called from the right place (e.g., controller, model).
  
  
  
  Related Information:
  
  ABAP Documentation: Review the official SAP documentation on ABAP classes and methods to understand the differences between static and instance methods.
  Debugging: Use the ABAP debugger to trace the execution and see where the method call is being made. This can help identify if the method is being called incorrectly.
  SAP Community: Check the SAP Community forums for similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS804 error in your SAP environment.