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| HubSpot Object | Customer.io Object | Direction |
|---|---|---|
| Contacts | Person / Profile | Two-way |
| Custom Objects | Events / Attributes | External → HubSpot |
| HubSpot events | Customer.io | HubSpot → External |
People, events and attributes stay aligned between Customer.io and HubSpot, so both tools work from the same customer instead of two drifting records.
Customer.io People ↔ HubSpot ContactsA HubSpot lifecycle change or event sends the matching Customer.io campaign, so messaging fires off real CRM signals rather than manual lists.
HubSpot Lifecycle / Event → Customer.io Campaign SendMessaging engagement flows back into HubSpot, so opens, clicks and behaviour feed segmentation and reporting in the CRM.
Customer.io Engagement → HubSpot SegmentationCustomer.io is a messaging-automation platform. We integrate it with HubSpot so people, events and attributes stay aligned — feeding HubSpot data to Customer.io for messaging and bringing engagement back for segmentation.
People/profiles ↔ Contacts, events/attributes → Custom Objects, and HubSpot events → Customer.io.
Yes. Which events/attributes map and sync direction are scoped to your Customer.io setup.