How to Connect 
Mailchimp + 
HubSpot: Step-by-Step Integration & Automation Guide (2026)
A complete blueprint for automating workflows between Mailchimp and HubSpot using native connectors, Webhooks, or Zapier/Make.
- Connection
- Native
- Native
- Setup time
- 20–30 minutes
- Difficulty
- Medium
When & why to run Mailchimp with HubSpot
Simple email tool vs. all-in-one growth platform.
Mailchimp is an easy, affordable email marketing tool; HubSpot is a full marketing, sales, and service platform built around a CRM. Choose Mailchimp for straightforward email and a low starting cost; choose HubSpot when you want email unified with a real CRM, sales, and reporting as you scale.
Automation Blueprints — make them work together
The real payoff is the stack. These are concrete Mailchimp ↔ HubSpot workflows worth building.
New subscriber → CRM contact
New Subscriber
No matching contact
Create / Update Contact
Email signups flow into HubSpot as CRM records for sales follow-up.
Lifecycle change → update audience
Lifecycle Stage Changed
Has email consent
Add / Remove from Audience
Keep email segments in sync with CRM lifecycle stages.
Setup steps
The native connector path, start to finish.
- 1
Sign in to both Mailchimp and HubSpot with an account that has admin or integration permissions.
- 2
Open the native integration from either tool's integrations directory and authorize the connection via OAuth.
- 3
Select the objects to sync and map fields between Mailchimp and HubSpot (statuses, owners, dates, IDs).
- 4
Enable the first automation — New subscriber → CRM contact: Mailchimp: New Subscriber → HubSpot: Create / Update Contact.
- 5
Run one test record end-to-end, confirm it lands correctly in the other tool, then switch on the remaining workflows.
Edge cases & rate limits
What breaks in production — plan for these before you scale.
- Field mapping: Mailchimp and HubSpot fields rarely map 1:1 — normalize dates, currencies, and dropdown/picklist values explicitly.
- Pick a source of truth per field to avoid two-way syncs overwriting each other in a loop.
- Mailchimp: Key tools (journeys, advanced segmentation, more seats) are gated to higher tiers, and send caps are fixed multiples of your contact count.
- HubSpot: Removing the required annual commitment for month-to-month raises the rate.
- Watch API rate limits on bulk backfills — throttle or batch to stay under each tool's per-second/per-minute caps.