Email and Fax smartform for Sales Order Confirmation

Dear friends,

I have a reqirement to mail and fax Order Confirmation ( Smartform ) to the ship to party.

In NACE, I have created a Output type ZAU1 in which I have considered 5 External send and assigned the driver program and routine. Also I have selected " send immediatly ". I am unable to debug the driver program. I have put breakpoint in the routine ENTRY as well. Please put some light on this.

with regards,

Sathar