User Exit module in DMEE

Hi Experts,

I have created a user exit by name ZDMEE_EXIT_ACCNUMBER in a package ZDMEE for a customized DME tree. Now I want to debug the source code of the FM when I run F110. I found some posts on this issue, but still I am unable to solve the problem.

Can any one please advice how to debug the FM usinf F110, Is there any special procedure to do this?

Thanks,

sapuser