Import your list from another platform

Export your list from your current platform as a CSV, then use Subscribers → Import in the audience you're moving them into. The import wizard walks you through matching your file's columns to fields here.

What the wizard does carefully

• Statuses are never guessed. You explicitly map your old platform's statuses (active, unsubscribed, bounced…) to ours. If a row's status doesn't match your mapping, the wizard asks rather than assuming.
• Consent is never invented. If your export includes consent dates or sources, map them and they're preserved. If it doesn't, the import records what it actually knows—not a made-up opt-in.
• Unsubscribed readers are imported too—as unsubscribed. This matters: their unsubscribe is a promise you made. Importing them keeps that promise enforced here, so a future import or signup can't accidentally start emailing someone who opted out years ago.
• Duplicates are handled by email address—importing the same file twice won't create doubles.

Import everything

Bring your whole export, including unsubscribes and bounces—not just the active readers. Suppressed contacts don't count against your plan's subscriber cap (only mailable readers do), and having the full history is what protects your sender reputation.