CUSTOMER EXITS

             

 Example1 on Function Module Exit using call customer function.

Business Requirement: When ever we create a customer. We need to check weather  the customer  belongs to Country : GERMANY  and if Region  is  equal to space .

Then, Raise an Error message.

Technical requirements:

Þ      Tcode is  :  XD01/ XD02/ XD03.

Þ      Country Field is : LAND1 .

Þ      Region Field is : REGIO.

Þ      Table name is : KNA1 .

Þ      The above tables and fileds are given by functionasl consultants.

STEPS:

Step1 : Find the FM exit for the requirement.

Step 2: Implement the Exit using CMOD Transaction .

Step 3: Test It .

Step1 : Find the FM exit for the requirement:

Þ      Goto XD02

Þ      Give any customer no, Ex : 3471

Þ      Press enter

Þ      Customer Details will be displayed.

Þ      Click System from Menu bar -> Status ->

Þ      Double click on Program (Screen)

Þ     

Þ      Now, Click on Find Icon 

Þ      Type Call customer  in the Find field, then click the In  Main program radio button and hit Enter

Þ      A list of call customer functions will be displayed.

Þ      Based on requirement, Check Import/Export Parameters for each Function Module

Þ       And roughly select some  Customer Function Modules .

Þ      As per my requirement, I need KNA1 Table details, SO I have selected the below Customer Function Module which has an exporting parameter I_KNA1.

Þ      Now, double click on the above Function Module  and Put a break-point .

Þ      Now execute the Transaction.

Þ      Goto XD02

Þ      Give any  customer number, Ex : 3471

Þ      Press Enter

Þ      Customer screen will be displayed.

Þ      Click on Save.

Þ      Our break-point will be triggered.  Please check the below  screen shot ..

Þ      Stop the Debugging and now implement the Functional Module Exit.

Þ      As this exit is triggered, this is the suitable Functional Module Exit for our requirement.

Step 2: Implement the Exit using CMOD Transaction .

Þ      Goto CMOD Transaction.

Þ      Give a   name  for the Project

Þ      Click on create

Þ      Give Short Text as “Implementing Enhancement for XD01”.

Þ      Click on Enhancement Assignments Button.

Þ      Give Enhancement Name and press enter.

Þ      Now we don’t   know the Enhancement name .

Þ      So, to find the Enhancement name Follow the below steps.

STEPS TO find the Enhancement name

Þ      Goto Table MODACT which will display SAP Enhancement names.

Þ       Goto SE11->Give table Name as MODACT->display->Click on contents

Þ      Give MEMBER as   “EXIT_SAPMF02D_001”

Click on execute .

It will display the Enhancement name .

Þ      So the Enhancement name is SAPMF02D .

Þ      Give Enhancement Name and press enter.

 Þ        Clcik onButton.

The below Screen will be displayed with RED colors.

Þ      Double click on  “EXIT_SAPMF02D_001”.

Þ      Function Module will be opened .

Þ      Below you will find an Include .

Þ      Double click on Include .

Þ      A warning message will appear.

Þ      Just press Enter.

Þ      Create the Include

Þ      Include will be opened.

Þ      Write the below code.

Þ      Save activate the Include.

Þ      Click on BACK

Þ      Activate the Function Module.

Þ      Click on BACK

Þ      Click on Activate.

Þ      The RED lights will turn to GREEN Color.

Þ      Activate the Exit.

Þ      Now, Run the transaction and test .

Þ       

Þ      Goto XD02.

Þ      Give customer no

Þ      Press neter

Þ      Customer Screen is displayed.

Þ      Remove the region  and save it.

Check below

Þ      Now save it . Our Exit will be triggered and

Þ      The error message will be displayed as below .