User and Customer Exit

7/30/2019 User and Customer Exit

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What is Customer Exits ?

Customer exits are hooks provided by SAP within many standard programs, screens and menus on

which customers may hang custom functionality to meet business requirements. More on this in a

moment

Types of Customer ExitsThere are three main types of customer exits:

1. Function Module Exits

2. Screen Exits

3. Menu exits

Function Module Exit :It allows customer to add code via a function module at a specific location in an

SAP application program

Syntax: CALL CUSTOMER- FUNCTION 004

Menu Exit: It allows customer to add items to a pulldown menu in a standard SAP program. These itemsmay be used to call add-on programs or custom screens.

Format: +CUS ( additional item in GUI status )

Screen Exit : It allows customer to add fields to a screen in an SAP program via a subscreen. The

subscreen is called within the standard screens flow logic.

Format: CALL CUSTOMER-SUBSCREEN CUSTSCR2

Examples of Customer ExitsExample of a Screen Exit :

In transaction CAT2 Time Sheet Entry, HR wishes to include an interactive acknowledgment that

knowingly submitting incorrect data is grounds for dismissal.


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Example of a Menu Exit :

In transaction SE38 ABAP Editor, the development team wishes to include a menu link to transaction

SE80 Object Navigator for ease of use.

BEFORE

AFTER
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Example of a Function Module Exit :

The company wants the bank details of the Vendors in the Vendor creation to be mandatory event .So it

must flash a error message that Please Enter the bank details

BEFORE

AFTER


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Locating Customer ExitsIn transaction SMOD and look into the details-

Or in transaction SE81 you can use the appropriate application area
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Create a Customer Exit To create a customer exit you first need to create a project in transaction CMOD

Later you assign the Customer Exit to your project.

What is a USER EXIT?


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User Exit serve the same purpose as Customer Exits but they are available only for the SD module. The

exit is implemented as a call to a Function Module. The code is written by the developer.

Well know User Exit in SD is MV45AFZZ

USEREXIT_FIELD_MODIFICATION To modify screen attributes

USEREXIT_SAVE_DOCUMENT To perform operations when user hits SaveUSEREXIT_SAVE_DOCUMENT_PREPARE

USEREXIT_MOVE_FIELD_TO_VBAK When user header changes are moved to header work

area.

USEREXIT_MOVE_FIELD_TO_VBAP When user item changes are moved to SAP item work area

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User and Customer Exit