ML81N - Add Customer Tab

Hi All,

I need to add tab (along with few fields) on ML81N and need to pass the data in ESSR table.

I am using enhancement - SRVEUSCR, thru which i am able to display tab on screen.

But i am not able to capture value enter on screen in function modules:

EXIT_SAPLMMSK_020 AND EXIT_SAPLMMSK_021.

I have added fields in structure - CL_ESSRDB and using the same fields in new customer screen in SE51.

Please assist and let me know where i am going wrong.

Thanks

Rajesh