Migration Guide

1. Export clean data

Export active subscribers, unsubscribes, bounces, complaints, tags, and custom fields from your current provider. Keep suppression data separate so it can be preserved.

2. Rebuild sending identity

Verify your sending domain, configure DNS, and warm up campaign volume gradually if the domain or sending pattern is new.

3. Import subscribers carefully

Import active subscribers first, then apply tags and custom attributes. Do not re-enable contacts who previously bounced, complained, or unsubscribed.

4. Port transactional sends

Create API keys, update your application to call the transactional endpoint, and test low-risk email types before switching critical traffic.

5. Recreate webhooks

Add webhook URLs for the event types your app consumes. Use Apply to All when one endpoint handles every campaign event.