Audiences
Each audience comes across as a YionStack marketing list with merge fields preserved as contact custom fields.
Mailchimp integration
What Mailchimp data lands in YionStack, and how.
Export your Mailchimp audiences and campaign reports, upload them to YionStack, and the AI-assisted Import surface maps subscribers, tags, GDPR consent records and suppression lists into the marketing module — alongside the CRM that already shares the same contact record.
Quick facts
- Status
- File import
- Direction
- One-way import
- Connection
- Upload an export file
- Residency
- UK (europe-west2)
- Records
- 7 types
No live OAuth planned — YionStack marketing replaces, not connects.
Read the migration guideWhat lands in your business
The records that come across.
Subscribers
Subscribed, unsubscribed, cleaned and pending contacts with status preserved; duplicates collapse on email.
Tags and segments
Tags map one-to-one; saved segments come across as YionStack saved segments.
GDPR consent records
Per-contact opt-in source, opt-in date, IP at opt-in and marketing-permission categories all preserved.
Campaign send history
Past campaign sends, opens, clicks and bounces come across as read-only history.
Suppression and unsubscribe lists
Every unsubscribed and complaint-listed address comes across as a hard suppression.
Email templates (as reference)
Existing template HTML archived; new sends compose in the YionStack template editor.
What stays where it is
Honest scope.
- —Live automation journeys — re-authored in the YionStack marketing module so triggers can fire from CRM, accounting and booking events.
- —Signup forms and popups — re-built with the YionStack Builder so they live on the same website.
- —Mailchimp Transactional (Mandrill) — moves to YionStack’s built-in transactional layer via Postmark.
- —Subdomain warming and IP reputation — YionStack uses Postmark with established UK-region IP reputation.
- —Mailchimp websites and landing pages — re-built with the YionStack Builder.
Ready to bring your Mailchimp data across?
One-way copy by default. Run YionStack alongside the old stack and migrate at your own pace.
- No credit card
- 14-day free trial
- Cancel anytime