You can use Paid Membership plugins with wpForo.

1st - MemberPress, it requires the following combination:

1. MemberPress
2. wpForo - MemberPress Integration

2nd - SureMembers, it requires the following combination:

1. SureMembers
2. wpForo - SureMembers Integration

3rd - WooCommerce, it requires the following combination:

1. WooCommerce
2. WooCommerce Memberships
3. wpForo - WooCommerce Memberships Integration

4th - Paid Membership Pro, it requires the following combination:

1. Paid Memberships Pro
2. wpForo - Paid Memberships Pro Integration

Other then the WooCommerce, you should read the topics of paid membership tag: https://wpforo.com/community/?wpfs=paid+membership&wpfin=tag

I was trying to think of a smart way of setting up user roles and usergroups so that I don't run into any issues in the future.

The problem

The problem I'm facing is that I need users that purchase 'Subscription A' to be given wordpress user role 'A' and 'Subscription B' to be given the wordpress user role 'B'.

Both subscriptions should also set users to usergroup 'C'.

When the subscription is cancelled, the user roles should be allocated back to 'Subscriber' and usergroup should be allocated back to 'Registered'.

The above I've managed to accomplish via the woocommerce settings and an extra bit of code.

However this is when the problem occurs, as I have many user groups on the forum which have associated user role  'subscriber'

This causes a user to be assigned all the other user groups associated with subscriber, once their subscription  is cancelled - as they revert back to 'Subscriber' from user role 'A' or 'B'. However, I want them to be only h have the default usergroup 'Registered'.

Note: I have Role-Usergroup Synchronization turned on.

Solution

Is there a nice, clean workaround for this? Apologies if I haven't articulated the problem in the best way.