I have two coupons setup on my site. (jumplinecoffee.com)
one of them gives the customer a free shirt when they sign up for a subscription. It is auto-applied and works fine
The other gives the user a free mug if they spend $50 or more. (code:freemug) This seems to work fine when it is applied by itself.
However, if the user is signing up for a subscription AND wants to use the free mug coupon then it has issues. It says the coupon is invalid. But the worst part is that is changes the total of all non subscription items to ZERO! So it is basically giving everything away for free when they apply that coupon.
Thanks,