A Subaccount is a separate account that is tied to, and part of, your main (master) account. Subaccounts let you easily divide your account into multiple departments. Each Subaccount is its own account with separate Lists, Keywords, Inbox, Users, Longcodes, and Integrations.
Subaccounts are available on paid monthly plans. You can see how many Subaccounts come with each plan on our pricing page.