Hi ,
When I try to apply a coupon in an invoice in back-end (for a payment by admin) : it doesn't work.
When i click on apply, the little circle on the right keeps turning around ans never stops (and do the discount is never applied).
I remember I had the same Pb with Payplans 3.3.
I went back on ReadyBites forum, I still can see my ticket but unfortunately I can not open the thread => the url link sends me back to the Stackideas website.
Thanks for your help.