How would you find out if an application program offers a program exit? Select all that apply.

How would you find out if an application program offers a program exit? Select all that apply.
A . Look for a customer exit in the SAP reference IMG within an application ^ Uarea
B . Use the Application Hierarchy
C . Search for the character string CUSTOMER-FUNCTION
D . Use the Repository Information System

Answer: A,B,C,D