user exit in BDC

Hi all,

I have written one module pool program, transaction code is YMM01

There one pushbutton is there which will call transaction MM01.

In MM01 one user exit is placed.

My Requirement is when I am calling MM01 thru YMM01 , the program for user exit should not afffect .

My idea if i get the main Tcode or program I can do that, but while debugging sy-tcode is MM01.

how to get it done.

Regards

Nancy Coner