An AMS is the system of record for most associations. It typically handles member profiles and organizations, membership types, dues invoicing and renewals, event registration, committees, and communications, often with a member-facing portal.
Associations frequently outgrow or work around their AMS, keeping company memberships, chapters, or credentials in spreadsheets. Before replacing it, it is worth checking whether integrations, data cleanup, or a focused portal would close the gaps at lower cost and risk.