First way to find a Function Module Exit in ABAP

 Ways to find a Function Module Exit:

* Put the Breakpoint on the statement CALL CUSTOMER-FUNCTION.
* Put the package name of the program in SMOD T-code (Utilities-find-package name)
* Go to T-code SE84(Enhancements- Customer exits).

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To pass the default value to 'Sold-to-party' field in 'VA01' transaction.

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Put the Breakpoint on the statement CALL CUSTOMER-FUNCTION.

1. Go to T-code 'VA01'.
2. Enter order type. (Eg: AA).                               
3. Enter '/h' (To become debugger on) and press 'Enter'.
4. In debugger click on 'Breakpoints' choose breakpoint at and select break point at statement.



5. Enter 'CALL CUSTOMER-FUNCTION'. and press 'enter'.

6. Click 'F8'.

7. Click on 'program/include/line'(new window opened).



8. Double click on three dight number and go to attributes and check description of suitable for requirement.
9. Repeat the step's 6,7,8 up to finding the correct function module.

10. Our requirement meets function module is







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