kweb wrote: I would like my customers can add multiple plans to their baskets.
The problem is that when they have already a plan they have the message "a payment invoice exists already please check" and they can't add another one.
I didn't find how to change this behavior.
Thank you
In CBSubs, customers can add multiple plans once at same time if they are not exclusive and displayed same time. You can also have e.g. exclusive and non-exclusive plans at 2 levels (main level and child plans), which offers quite some flexibility.
In basket view there is a "Cancel basket" at bottom which allows to select other plans into a new basket. That has a CSS class allowing for CSS styling in your template.
CBSubs has no "shopping basket" functionality where items can be added or removed, and there are no plans currently to add such functionality.