Iterable Source

Good to know: Event Cloud source

The Iterable Source is an event source. This means that it sends data as events, which are behaviors or occurrences tied to a user and a point in time. Data from these sources can be loaded into your Segment warehouses, and also sent to Segment streaming destinations. Learn more about cloud sources.

This source is supported in US data processing regions.

The Iterable source is only supported in workspaces configured to process data in the US region. Workspaces configured with data processing regions outside of the US cannot connect to this source. For more information, see Regional Segment.

Iterable is the growth marketing platform that enables brands to create, execute and optimize campaigns to power world-class customer engagement across email, push, SMS, in-app and more with unparalleled data flexibility. An integrated, cross-channel solution—built for marketers, trusted by engineers, designed with intelligence.

Take your company’s marketing analysis to the next level by adding Iterable as a Source to Segment. Iterable will automatically collect cross-channel messaging events like Email Delivered and Push Delivered, forward them to your destinations and load them into your data warehouse.

In your favorite BI or analytics tool, you’ll be able to analyze all your cross-channel marketing campaigns in SQL or through drag-and-drop reports. And you’ll be able to sync your Iterable data with event data you’re already sending through Segment to analyze the down-funnel effects of your messaging.

Getting Started

If you have previously enabled sending email events using the Iterable destination during the beta period (using a project write key), you do not need to create new Iterable source. Your email data will continue to flow as normal.

  1. From your workspace’s<your-workspace>/sources page, click Add source.

  2. Choose Iterable.

  3. Give the Source a name and add any labels to help you organize and filter your sources. You can give the source any name, but Segment recommends a name that reflects the source itself, as this name auto-populates the schema name. For example, the source name Iterable creates the schema iterable.

  4. The next page (“Overview”) will surface your Segment write key for Iterable. Copy this write key. 

  5. To finish the setup, you’ll have to go into your Iterable account and enter this Segment write key in their integrations settings. Find the right place in Iterable by clicking Integrations > Third Party > Segment.

  6. Click Save.

  7. In Segment, click into your Iterable Source in<your-workspace>/sources. From there you’ll be able to add Destinations where you want to see email events.

That’s it! As you send emails, events will now be sent to your destinations and automatically loaded into any warehouses you have enabled. 



Iterable uses Segment’s stream Source component to send Segment email events. It uses a server-side track method to send data to Segment. These events are then available in any destination that accepts server-side events, and available in a schema in your data warehouse, so you can query using SQL. 

The default behavior is for Iterable to pass the userId associated with the email recipient as the userId. There are cases in which Iterable does not have an associated userId, in which case the email address will be passed in as the anonymousId


Collections are the groupings of data Segment pulls from your Source. In your warehouse, each collection gets its own table, as well as a tracks table that aggregates all the events into a single table. 

Collection Type Description
Email Bounced Event The receiving server could not or would not accept message.
Email Delivered Event The message was successfully delivered to the receiving server.
Email Link Clicked Event The recipient clicked a link within the message. Enable Click Tracking to receive this event.
Email Marked as Spam Event The recipient marked message as spam.
Email Opened Event The recipient has opened the HTML message. Enable Open Tracking to receive event
Hosted Unsubscribe Click Event The user navigated to the email preference center through a hostedUnsubscribeUrl link.
In App Clicked Event An in-app click event indicates that a user tapped a link or button in an in-app message.
In App Delivered Event Indicates that an in-app message arrived on a user’s device. It does not mean that the user viewed the message.
In App Opened Event Indicates that an in-app message displayed in an app, either because it appeared on arrival or because the user selected it in the inbox.
In App Sent Event Indicates that Iterable sent an in-app message to a user. It does not mean that the user received the message.
Mobile App Uninstalled Event Ghost message sent 12 hours after original push delivered results in rejection from receiving server.
Push Bounced Event The receiving server could not or would not accept message.
Push Delivered Event The message was successfully delivered to the receiving server.
Push Opened Event The user was shown a push notification by the client app.
SMS Bounced Event The receiving server could not or would not accept message.
SMS Clicked Event The user has clicked a link within an SMS message.
SMS Delivered Event The message was successfully delivered to the receiving server.
SMS Received Event The user has sent an inbound SMS that was received by server.
Subscribed Event The user subscribes to a messaging channel.
Unsubscribed Event The recipient clicked a on message’s subscription management link.
Web Push Clicked Event The user clicked on a web push notification.
Web Push Delivered Event A web Push was successfully delivered to the receiving server.

Send data to Iterable

The Iterable Source works better when you also connect Iterable as a destination. With the Iterable Destination, you can use Segment to send Iterable user and event data from which you trigger email campaigns. For more information, see the Iterable destination docs.

This page was last modified: 23 Jun 2022

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