We've refactored how plan membership works which unlocks a series of new features that have been asked for. In this release we have:

Initial plan
The plan assigned to new companies upon sign ups. This can be a free plan attached to stripe product or a paid plan that begins with a trial. A stripe subscription will be provisioned for this customer in this case.

Fallback plan
Choose a plan all companies are assigned to if they don't have a plan. This is similar to how Default plan (deprecated) used to work. This must be a a plan with no affiliated Stripe product. Companies will be put into the Fallback plan if their subscription becomes inactive (unpaid, cancelled) or if trait-based targeting becomes inactive.

Trial expiry plan
This is the plan companies get when their trial expires.