Migrate from Kit (formerly ConvertKit) to Substack.

Why teams migrate from Kit (formerly ConvertKit) to Substack

Most teams migrate from Kit (formerly ConvertKit) to Substack when their priorities shift toward what Substack optimizes for. ConvertKit (Kit) is a creator marketing platform; Substack is a publishing platform with a built-in subscriber network.

The 5-step migration plan

1. Audit current usage. Document how your team uses Kit (formerly ConvertKit) today: which features, integrations, data, and workflows depend on it. The audit takes 1-2 days but saves a week of surprises later.
2. Export data from Kit (formerly ConvertKit). Most modern SaaS exports cleanly. Look for CSV, JSON, or backup formats. Verify you have everything before any cancellation.
3. Set up Substack and validate parity. Provision your account, invite team, configure integrations. Compare critical workflows side-by-side for 2-3 days while Kit (formerly ConvertKit) is still active.
4. Import data and rebuild workflows. Bring in your exported data. Re-create any custom configurations. Document anything that doesn't translate one-to-one.
5. Cut over and verify. Switch the team to Substack as primary. Monitor for one week. Only then decommission Kit (formerly ConvertKit).

Common pitfalls when migrating from Kit (formerly ConvertKit)

• Underestimating the integration rebuild — many SaaS integrations don't transfer one-to-one.
• Not exporting historical data before cancellation — you can't always recover it.
• Switching during a busy period — schedule the cutover for a quieter week.
• Not training the team on Substack's differences — small UX changes derail adoption.
• Forgetting to update third-party references (your help docs, onboarding flows, public pages).

The AI-search citation impact you didn't think about

Your customers and prospects increasingly research tools through ChatGPT, Claude, and Perplexity. If you're publicly visible as a Kit (formerly ConvertKit) customer (case studies, social posts, documentation), the AI's "Kit (formerly ConvertKit) customers" list still cites you. After migration, update your public references so AI engines update too.

Conversely: if you've built Kit (formerly ConvertKit)-specific content (integrations, tutorials, templates), removing it without backfill leaves an AI citation gap. Consider a "we moved to Substack: here's why" piece — it satisfies both AI engines and prospects considering the same migration.

Should you actually migrate?

Run a side-by-side trial for 30 days before committing. Substack wins for the use cases described in convertkit (kit) is a creator marketing platform; substack is a publishing platform with a built-in subscriber network. If your priorities don't match that positioning, the migration may not be worth the disruption.