Introduce error message for a particular SAP standard function

Question

Hi All,
In TCode CS02 - BOM Changes, for a particular BOM usuage [say D], whenever a user clicks on Material BOM- DELETE, I would like an error message to be displayed saying that they need a Change Number.
Could you please let me know how I go about acheiving this and in which module I have to build the code ?
Thank you,
Satish

Answer 1

Hi,
To find the BAdi for CS02, follow steps:
Goto SE24 and enter CL_EXITHANDLER and click on display. Now double click on the method GET_INSTANCE. Set breakpoint on CL_EXITHANDLER=>GET_CLASS_NAME_ON_INTERFACE.
Now run the transaction for which you want to search the Badiu2019s. Now whenever the method is called, the program goes into debugging mode. Check the value of exit_name (changing parameter),this would give the name of the Badiu2019s. Run the entire transaction and note down all the Badiu2019s.
Now we have to implement the Badi. Go to SE18 to check the definition of the Badi and SE19 to implement the Badi. Enter the name of the Badi in the create implementation section (if you are creating a new implementation u2013 Radiobutton Classic Badi) and click on create implementation. Now enter the name of the implementation. Double click on the method name and add the code for the implementation.
Now, you need to check the parameter inside the BADI and figure out as per your requirement.
Use break-points (break <user_name>) and execute the transaction to check the flow and find the BAdi exectued when user click DELETE button.
Hope this helps you.
Regards,
Tarun