How To Fix FDT_EXPRESSIONS807 - Static method call isn't possible, method &1 has a reference parameter

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 807

• Message text: Static method call isn't possible, method &1 has a reference parameter

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS807 - Static method call isn't possible, method &1 has a reference parameter ?

  The SAP error message FDT_EXPRESSIONS807 indicates that there is an issue with a static method call in your ABAP code. Specifically, the error arises when you attempt to call a method that has a reference parameter in a static context, which is not allowed in ABAP.
  Cause:
  The error occurs because:
  
  The method you are trying to call is defined with a reference parameter (i.e., a parameter that is passed by reference).
  You are attempting to call this method in a static context (e.g., from a static method or a static block of code).
  
  In ABAP, reference parameters require an actual variable to be passed, and static methods do not have an instance context to provide such a variable.
  Solution:
  To resolve this error, you can take one of the following approaches:
  
  
  Change the Method Call Context:
  
  If possible, change the context from which you are calling the method. Instead of calling it statically, create an instance of the class and call the method on that instance.
  
  DATA(lo_instance) = NEW your_class( ).
  lo_instance->your_method( CHANGING your_reference_parameter ).
  
  
  Modify the Method Definition:
  
  If you have control over the method definition and it makes sense for your application, consider changing the method to not use reference parameters. This would allow you to call it statically without issues.
  
  
  
  Use a Local Variable:
  
  If you need to keep the method as is, you can create a local variable in the static method and pass that variable to the method.
  
  DATA lv_variable TYPE your_type.
  your_class=>your_method( CHANGING lv_variable ).
  
  
  Related Information:
  
  
  Reference Parameters: In ABAP, reference parameters are used to pass variables by reference, allowing the method to modify the original variable. This is done using the CHANGING keyword in the method signature.
  
  
  Static Methods: Static methods belong to the class itself rather than to any specific instance of the class. They cannot access instance variables directly and are typically used for utility functions.
  
  
  ABAP Documentation: For more detailed information, refer to the official SAP documentation on method definitions, static methods, and parameter passing in ABAP.
  
  
  By following the above solutions, you should be able to resolve the FDT_EXPRESSIONS807 error and successfully call the method in your ABAP code.