Glossary
What is membership management?
Membership management is the work of keeping a membership current: joining, renewing, moving somebody between tiers, lapsing them when they stop paying, reinstating them when they come back. Done in the portal, each of those is one action against one record.
Still deciding
See the terms as features
The glossary explains the vocabulary. The features page shows what each of these looks like in a portal you run yourself, and the pricing page shows what it costs.