Earlier I ran into some issues while I was testing foxy cart. The issue was when I created Subscription quotas on the custom subscription page I created for visitors to sign up, for a paid account when they are joining my site. I'm bringing this to you guys attention because some people may need the answers to this and also it is a bug.
The issue is when you create quotas for a custom subscription page with foxy cart, and A customer or user chooses a quota and add it to the shopping cart, they get A error that say "Cart Validation Error: name" Or A Blank cart with no quota with zeros. The reason behind this is that you renamed your subscription quotas and the foxy cart system seems to only be picking up the old name you had before you changed it, so it sees all your renamed quotas as a non existing quota. You will not get these errors with newly created quotas, but for quotas that you renamed/changed the name. Solution, simply copy all quota plan info and delete them. Then simply, Create new quotas with the same quota names, no need to change the name of the quotas if you don't want to. The error only occurs when you use quotas that have been renamed. These are the issues I ran into today when I were testing foxy cart paypal gateway for subscriptions, It actually made me think the subscription urls were not working. Hope this helps for many that are having issues with foxy cart subscription url links.
updated by @syrus: 03/31/14 04:12:39PM