- Use the dashboard importer to upload CSV/Excel files.
- The importer validates rows, creates/updates contacts, and respects unsubscribed status.
- Need programmatic imports? Contact support to discuss your use case.
- Create and manage segments in the app (filters by plan, source, custom fields).
- Use segments to scope campaigns or export for programmatic targeting.
- Import consent metadata if available; do not re-subscribe suppressed contacts.
- Keep segments simple and test audience sizes before sending.
- API: Preferences (for per-contact categories)
