I am also looking for this. We're a member-based organisation. If the code is the same for everyone, the member will just pass the code around!
We have additional complexity that can perhaps be solved together
a) Two levels of access: monthly access annual access (two cohorts). They need access to that course for either the next 30 days OR 365 days
b) 8 different courses: annual membership gives access to all courses. Monthly is per course.
I use cohort sync, but it means updating each account when they pay. And the payments can be at any time of the year, so it's a daily job.
We have additional complexity that can perhaps be solved together
a) Two levels of access: monthly access annual access (two cohorts). They need access to that course for either the next 30 days OR 365 days
b) 8 different courses: annual membership gives access to all courses. Monthly is per course.
I use cohort sync, but it means updating each account when they pay. And the payments can be at any time of the year, so it's a daily job.