What is formal parameter in SAP BC-ABA - ABAP Runtime Environment?

SAP Term: formal parameter

• Component: BC-ABA

• Component Name: ABAP Runtime Environment

• Description: Parameter of the parameter interface of a procedure or event. Formal parameters have names and are either generic or completely typed. Either pass by reference or pass by value is defined for each formal parameter. Depending on their typing, they can be used in the same way as data objects in a procedure. The formal parameters make up a substantial part of the signature of a procedure. Formal parameters are either positional parameters for subroutines or keyword parameters for methods and function modules. When a procedure is called, formal parameters are bound to actual parameters.

Smart SAP Assistant

• Key Concepts: 
  A formal parameter is a type of parameter used in ABAP programming. It is a placeholder for a value that is passed to a program or function module when it is called. Formal parameters are declared in the program or function module definition and can be either input or output parameters. 
  
  How to use it: 
  Formal parameters are declared in the program or function module definition using the PARAMETERS statement. The syntax for declaring a formal parameter is PARAMETERS  TYPE . The data type can be any valid ABAP data type, such as CHAR, INT4, DEC, etc. 
  
  Once the formal parameter has been declared, it can be used in the program or function module code. For example, if an input parameter is declared as type CHAR, it can be used in an IF statement to check for certain values. 
  
  Tips & Tricks: 
  When declaring formal parameters, it is important to use meaningful names that accurately describe the purpose of the parameter. This will make it easier to understand and maintain the code in the future. 
  
  It is also important to use the correct data type for each parameter. Using an incorrect data type can lead to unexpected results and errors. 
  
  Related Information: 
  For more information on formal parameters and how to use them in ABAP programming, please refer to the SAP Help documentation for BC-ABA ABAP Runtime Environment.