Release Notes

Previously, our Segment Source integration wouldn’t send events for people who did not have an ID. Now, if a person has an email but does not have an id, we send events to Segment using the email address as an anonymousId. This lets you map events for leads in Customer.io to another destination.

You can now segment people based on messages in individual campaigns. This helps you see which individual people opened a message, or received a specific message in a campaign split.

When you create a segment, select the message type under Message Data. Then you can click Any , and search for the campaigns or individual messages that you want to segment on by name.

After you start a campaign, you can click the campaign’s Journeys tab to see the most recent journeys that started for that campaign. These journeys can help you understand if your campaign works the way you expect it to.

We’ve added an API endpoint that you can use to merge duplicate people. The payload lets you identify a primary person and a secondary person. The primary person remains after the merge. The secondary person’s information is merged into the primary, and then it is deleted.

We added a new message library, making it easy to search for messages in your workspace without having to click through your campaigns and broadcasts to find them. Go to Content > Message Library to search through your messages.

Set up a newsletter webhook, sending a request for every member of a newsletter audience. This provides a handy way to trigger in-app messages and other external services based on a segment of people in Customer.io!

Now you can edit, recategorize, and delete rows saved rows in our drag-and-drop editor. This helps you prune saved rows and prevent other members of your team from accidentally reusing stale content! Note that deleting a row does not remove it from existing messages; it only prevents you (and others) from using that row in the future.

You can save rows of content in emails that you create in our drag-and-drop editor. This helps you save reusable content, like headers and footers, so that your messages all have the same look and feel without having to re-create message blocks every time you write an email!

In Email or ID workspaces, you can now add people from a CSV file by email address. Previously, you could only add people from CSV files by ID.

Customer.io now automatically identify people when they click tracked links that send them to pages containing the JavaScript snippet. We append your links with a _cio_id URL parameter to identify people who click tracked links. This feature is on by default when you create new workspaces. If you want to turn this feature on in an existing workspace, go to Settings > Workspace Settings > URL Parameters and turn on the Add _cio_id URL parameter setting.

You can now segment your audience based on URL parameters passed in a page view event. Page view events captured by our JavaScript snippet automatically convert query parameters to event properties you can segment on.

Our JavaScript snippet now automatically captures URL parameters in page view events, helping you retain information about the pages a person views, like filters, search queries, etc.

Unsubscribe links generated by Customer.io are now untracked by default. You no longer have to worry about unsubscribe links counting as tracked clicks.

When you select a person, you can now go to the attributes tab and search that person’s attributes by name. This can help you find specific attributes when you associate people in your workspace with large amounts of data.

You can now count conversions from webhooks, providing a mechanism to track conversions for messages that you trigger with webhooks in services outside of Customer.io. When you set up a webhook in your campaigns, toggle Allow conversion from this webhook to count conversions from your webhook.

Twilio supports response keywords, letting people opt-out of Twilio SMS messages by replying with keywords like STOP or QUIT. We wrote a script you can use and a quick recipe to help you set up a Twilio workflow to send opt-outs back into Customer.io.

We added the option to disable link tracking in the drag-and-drop editor, so you can exclude unsuccessful click outcomes, like custom unsubscribe clicks, and maintain an accurate click rate. To disable link tracking, just add the untracked class to the button, image, or text link that you don’t want to track.

You can search for team members in your workspace settings, making it easier to determine who has access to your workspace, especially when you have a large team.

You can now send WhatsApp messages via Twilio just like SMS messages. When WhatsApp support is enabled, you can compose WhatsApp messages with customer data, and preview the output directly in our Twilio composer.

To support Twilio WhatsApp messages, you must set up access to the WhatsApp Business API. When you do, contact win@customer.io, and we’ll enable WhatsApp support for your account.

We added three new liquid filters:

• The currency and format_number take regional parameters, so you can format numbers to suit your audience’s local conventions. For example: {{ 123456.78 | currency: "fr" }} outputs 123 456,78€.
• The where_not condition lets match negative conditions—people who do not match an attribute value or an event where a value isn’t present.

Set up a Facebook Lead Ads integration automatically adds people to your email-based workspace when they fill out Facebook Lead Ad forms. You can also trigger campaigns whenever people fill out Facebook Lead Ads, automatically sending follow-up messages to nurture conversions.

We added the ability to select, move, copy, and delete multiple workflow items so that, in just a few clicks, you can copy and move blocks while preserving their structure. The workflow builder supports both hotkeys and click-and-drag functionality, so you can select and modify items using the input method that works best for you.

We also made it easier to copy entire workflows across campaigns and workspaces, helping you reuse your most successful messages and workflows. You can copy entire or partial workflows to or from another workflow using the Copy to and Copy from options.

Now when you A/B test your newsletters, you can create segments of recipients based on the variation of the newsletter that they received. These segments can help you tailor follow-up messages based on the test variant that each member of your audience received.