SAP TYPING CHECK documentation, setup help and example usage

ARTICLE

Checking Typing
When data objects are assigned to typed
field symbols and when actual parameters are assigned to typed
formal parameters of procedures , the system checks whether the data type of the assigned data object matches the typing of the field symbol or of the formal parameter.

General Rules for Typing

Special rules apply to:

Return Values of Functional Methods

Literals as Actual Parameters

Functions and Expressions as Actual Parameters

Note
When specifying data objects suitable for a typing, an assignment to a helper variable with a valid data type is often made. When methods are called, these types of helper variables can often be skipped by using a constructor expression in the position of an actual parameter.