Customer.io

🏃‍♀️ Getting Started
In this guide, we will show you how to connect Customer.io to Census and create your first sync.
Prerequisites
Have your Census account ready. If you need one, create a Free Trial Census account now.
Have your Customer.io account ready.
Have the proper credentials to access to your data source. See our docs for each supported data source for further information:
​Databricks​
​Google BigQuery​
​Google Sheets​
​Postgres​
​Redshift​
​Rockset​
​Snowflake​
1. Collecting Customer.io API Credentials
To connect Census to your Customer.io, you'll need to provide Census with a few credentials so that we can talk to it directly. 
2. Go to your API Credentials page
In the top right, click on your name, and select Account Settings
Then select API Credentials
3. Create a new set of Tracking API credentials for Census
Click the Create New API Credentials button in the top right.
​
Then give the new credentials a name. It can be whatever you like, but give it something memorable so you know this key is used by Census. If you're using Customer.io's workspaces feature, you'll want to specify which workspace to use. If you want to connect Census to multiple workspaces, you'll need to create credentials for each one.
When you hit save, you'll return to the list of credentials. Make a note of the Site ID and API Key. You'll need to provide them to Census.
4. Create a new Customer.io connection in Census
Visit the Connections tab in Census
Then select Customer.io from the Add Service menu
Finally, provide the Site ID and API Key you just created on Customer.io. You can name the connection something memorable. This is particularly useful if you're going to create multiple connections, one for each Customer.io workspace. In that case, include the Customer.io workspace name here.
Customer.io will now appear as a new destination for Census syncs.  🎉
🏎 Sync Speed
Customer.io is a destination with a fast API that can burst all the way to 600 api calls per second but usually we set a conservative 150 calls per second.
Service
Public API rate limit
Records sync / Minute
Customer.io
150 / sec
7,000
🗄️ Supported Objects
We currently support all objects of Customer.io's core API. ​
Object Name
Supported?
Create Fields?
Person
✅
✅
Device
✅
✅
Event
✅
✅
🔄 Supported Sync Behaviors
Learn more about all of our sync behaviors on our Core Concept page.
Behaviors
Supported?
Objects?
Update or Create
✅
All
Update Only
🔜
All
Append
✅
Event Only
🔋Contact us if you want Census to support more Sync Behaviors for this destination
💡  Things to know about the Customer.io connector
There are a few unique features available when syncing to a Customer.io instance.
People are very standard Census syncs. Customer.io only allows the ID field to be used as the identifier for a Person record and recommends using your internal ID when possible, though email may be used to refer to prospective users if needed. ⚠️ This is a configuration done at the Project level of your instance. You can read more about Customer.io's identifier guidelines here.
Events are unique (literally!). Census will only send new database rows to Customer.io and so Events only support the Append Only behavior for syncs. In order to make sure an event is only ever published once, each row in your events source needs a globally unique ID.
Both objects support arbitrary custom fields. You can directly map to a new custom field by clicking the + Add Custom Field button when creating or editing a mapping.
🚑 Need help connecting to Customer.io?
​Contact us via [email protected] or start a conversation with us via the in-app chat.