Customer.io Integration

Messaging automation — profiles, segments, campaigns, sends, and reporting webhooks. Connect Customer.io campaigns and audiences to CRM, advertising, and analytics workflows. When Watch Activities arrives, automatically continue with Download Export or Get a Newsletter.

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Supported triggers and actions for Customer.io integration

Triggers can detect changes in Customer.io and run actions that can create, search or modify data inside Customer.io automatically [3] — exactly how you set them.

Watch ActivitiesTriggers when a new activity occurs on your workspace.
Watch Reporting EventsTriggers when a reporting webhook event occurs.
Download ExportDownloads the data from a completed export.
Get a NewsletterReturns metadata for an individual newsletter.
Get a SegmentRetrieves the information about a segment.
Get Archived MessageRetrieves the archived message content for a specific message.
Get BroadcastGet details of a specific broadcast.
Get Broadcast ActionGet details of a specific broadcast action.
Get Broadcast Action Link MetricsGet link click metrics for a broadcast action.
Get Broadcast Action MetricsGet performance metrics for a broadcast action.
Get Broadcast Action TranslationGet translation for a specific broadcast action in a language.
Get Broadcast ErrorsGet errors from a broadcast trigger send.
Get Broadcast Link MetricsGet link metrics across all messages in a broadcast.
Get Broadcast MessagesGet all messages sent for a broadcast.
Get Broadcast MetricsGet overall metrics for a broadcast.
Get Broadcast StatusGet the status and details of a broadcast trigger.
Get CampaignGet details of a specific campaign.
Get Campaign ActionGet details of a specific campaign action.
Get Campaign Action Link MetricsGet link click metrics for a campaign action.
Get Campaign Action MetricsGet performance metrics for a campaign action.
Get Campaign Action TranslationGet translation for a specific campaign action in a language.
Get Campaign Journey MetricsGet journey-level metrics for a campaign.
Get Campaign Link MetricsGet link metrics across all messages in a campaign.
Get Campaign MessagesGet all messages sent for a campaign.
Get Campaign MetricsGet overall metrics for a campaign.
Get CollectionRetrieves a specific collection by ID.
Get Collection ContentsRetrieves the data within a collection.
Get Customer ActivitiesLooks up a customer's activities.
Get Customer AttributesLooks up a customer's attributes.
Get Customer MessagesLooks up messages sent to a customer.
Get Customer Opt-OutsLooks up a customer's opt-outs across channels.
Get Customer RelationshipsLooks up the objects a customer is related to.
Get Customer SegmentsLooks up the segments a customer belongs to.
Get Customer Subscription PreferencesLooks up a customer's subscription preferences.
Get Customers by EmailRetrieves customers matching an email address.
Get ExportRetrieves details about a specific export.
Get MessageRetrieves a specific message.
Get Newsletter DeliveriesReturns information about the "deliveries" (rendered messages) sent to your recipients for a specific newsletter.
Get Newsletter Link MetricsReturns metrics for link clicks within a newsletter, both in total and in series periods, ordered oldest to newest.
Get Newsletter MetricsReturns a list of metrics for an individual newsletter in steps (days, weeks, etc), ordered oldest to newest.
Get Newsletter Test Group TranslationReturns information about a specific language variant of a newsletter in an A/B test group.
Get Newsletter TranslationReturns information about a specific language variant of a newsletter.
Get Newsletter VariantReturns information about a specific variant of a newsletter — a language in a multi-language newsletter, or a message in an A/B test.
Get Newsletter Variant Link MetricsReturns link click metrics for an individual newsletter variant.
Get Newsletter Variant MetricsReturns metrics for an individual newsletter variant — a language in a multi-language newsletter, or a message in an A/B test.
Get Reporting WebhookRetrieves a specific reporting webhook.
Get Segment Customer CountRetrieves the customer count for a segment.
Get Segment DependenciesRetrieves the IDs of items that reference a segment.
Get Transactional MessageRetrieves a transactional message.
Get Transactional Message DeliveriesRetrieves the deliveries sent for a transactional message.
Get Transactional Message Link MetricsRetrieves link-click metrics for a transactional message.
Get Transactional Message MetricsRetrieves delivery metrics for a transactional message.
Get Transactional Message TranslationRetrieves a language translation of a transactional message.
List ActivitiesRetrieves a list of activities.
List Broadcast ActionsList all actions within a broadcast.
List Broadcast TriggersList all triggers for a broadcast.
List BroadcastsList all broadcasts in your workspace.
List Campaign ActionsList all actions within a campaign.
List CampaignsList all campaigns in your workspace.
List CollectionsRetrieves a list of all collections.
List Customers, Attributes, and DevicesRetrieves attributes and devices for up to 100 customers by ID.
List ExportsRetrieves a list of all exports.
List MessagesRetrieves a list of all of your messages.
List Newsletter Test GroupsReturns information about each A/B test group in a newsletter, including content IDs for each group.
List Newsletter VariantsReturns a newsletter's content variants — different languages in a multi-language newsletter, or A/B test variants.
List NewslettersReturns a list of your newsletters and associated metadata.
List Reporting WebhooksRetrieves a list of all reporting webhooks.
List Segment MembersRetrieves the customers that belong to a segment.
List SegmentsRetrieves a list of all of your segments.
List SnippetsRetrieves a list of all snippets.
List Transactional Message VariantsRetrieves each language variant of a transactional message.
List Transactional MessagesRetrieves a list of your transactional messages.
Search CustomersSearches for customers matching a filter.
Add Segment MembersAdds people to a manual segment.
Create NewsletterCreate a newsletter and optionally schedule it or send it immediately.
Create Newsletter Test GroupCreates a new A/B test group for a newsletter by duplicating the existing content into a new test group.
Create Newsletter Test Group TranslationAdds a language variant to a specific A/B test group in a newsletter, copying the default template in that group.
Create Newsletter TranslationAdds a language variant to a newsletter. Fields you omit copy over untranslated from the default template.
Create SegmentCreates a new manual segment.
Create SnippetCreates a new snippet.
Delete CustomerDeletes a customer profile.
Delete NewsletterDeletes an individual newsletter, including its content, settings, and metrics. 204 No Content.
Delete Newsletter Test Group TranslationDeletes a specific language variant of a newsletter in an A/B test group. You cannot delete the default language variant. 204 No Content.
Delete Newsletter TranslationDeletes a specific language variant of a newsletter. You cannot delete the default language variant. 204 No Content.
Delete SegmentDeletes a segment.
Delete SnippetDeletes a snippet.
Export Customer DataExports customer data based on specified filters.
Export Deliveries DataExports delivery data for messages.
Make an API CallPerforms an arbitrary authorized API call to any Customer.io App API endpoint not covered by a dedicated module.
Remove Segment MembersRemoves people from a manual segment.
Schedule NewsletterSchedules a newsletter to send at a specific time. The newsletter must be in a draft state.
Send EmailSends a transactional email.
Send In-App MessageSends a transactional in-app message.
Send Inbox MessageSends a transactional inbox message.
Send NewsletterSends a newsletter immediately. The newsletter must be in a draft state.
Send PushSends a transactional push notification.
Send SMSSends a transactional SMS.
Send WhatsApp MessageSends a transactional WhatsApp message.
Track Anonymous EventTracks an event for an unidentified visitor.
Track EventTracks a customer event.
Trigger BroadcastTrigger a broadcast send to the default audience.
Update Broadcast ActionUpdate a broadcast action (subject, body, sender address, etc.).
Update Broadcast Action TranslationUpdate a translated version of a broadcast action.
Update Campaign ActionUpdate a campaign action (subject, body, sender address, etc.).
Update Campaign Action TranslationUpdate a translated version of a campaign action.
Update CustomerAdds or updates a customer profile (upsert).
Update Customer Opt-OutsOpts a customer out of, or back in to, senders and channels.
Update Newsletter Test Group TranslationUpdates the translation of a newsletter variant in an A/B test group.
Update Newsletter TranslationUpdates the translation of a newsletter variant.
Update Newsletter VariantUpdates the content of a newsletter variant — the default message, an A/B test variant, or a translation.
Update Reporting WebhookUpdates a reporting webhook.
Update SnippetUpdates an existing snippet, or creates one if it doesn't exist.
Update Transactional MessageUpdates a variant of a transactional message.
Update Transactional Message TranslationUpdates a language translation of a transactional message.

How to integrate Customer.io in automation workflow?

3 simple steps to make your Customer.io connected with other apps in automation workflows on WEXTL. Up to 10 minutes integration set up.

STEP 1

Select Customer.io in workflow

Pick Customer.io app in the workflow builder [4] - just one click to select the app.

STEP 2

Connect Customer.io

When prompted, authorize access to Customer.io in WEXTL once. Customer.io credentials are encrypted and never shared with WEXTL. Authorization will be reused in any future API calls [3].

WEXTL wants to integrate with your Customer.io account. Approve?

STEP 3

Build a workflow

Build your workflow with Customer.io yourself or with WEXTL® AI Builder. Connect Customer.io to any available integrations [5], or use HTTP node to go beyond them.

Customer.io

How Customer.io connects and integrates with WEXTL

Save and approve your credentials once — WEXTL® stores authorization information encrypted and reuses the authentication whenever Customer.io app is called in workflows. That allows your marketing automations to run without your attention, per defined schedule [7]. Explore documentation [6] for a detailed list of fields that Customer.io supports.

Full Customer.io API documentation

The following table illustrates what fields Customer.io integration require during authorization flow inside our workflow builder [4].

Demonstration of Customer.io connection step inside WEXTL Workflow Builder [4].

Field	Type	Help
App API KeyRequired	password	App API Key from Customer.io → Settings → API Credentials (https://fly.customer.io/settings/api_credentials?keyType=app).
RegionRequired	select	Selects api.customer.io vs api-eu.customer.io.

Connect Customer.io to popular apps on WEXTL

Enter a name of the other app you want to sync with Customer.io below. Click on selected app to explore integration options with Customer.io. If the app you search for is not available in WEXTL yet, you can use HTTP node [10] instead to integrate it directly.

Example automation with Customer.io integration

Select Watch Reporting Events trigger from Customer.io - this will be a starting point in your automation. Whenever event happens in Customer.io, workflow will start [7] from Watch Reporting Events node.

Search for Update Reporting Webhook, connect it as the next step of integration sequence. You can use filters between Watch Reporting Events and Update Reporting Webhook, so only important data pass from Watch Reporting Events to the next step. WEXTL gives you full control over the process of Customer.io automation. All parts of workflow are visible on the canvas [4].

Customer.io on WEXTL has 114 modules for combining marketing automations. Explore Customer.io documentation for more.

Customer.io

Watch Reporting Events

Birdeye

Performs action

Birdeye

Triggers

Customer.io

Update Reporting Webhook

Demonstration of how visual Customer.io automation [6] looks in WEXTL.

Frequently asked questions

Common questions about automating Customer.io in your workflows.

Customer.io has 2 triggers, including "Watch Activities" and "Watch Reporting Events". Triggers are start points of the workflow, and automations may start from them.

Integration has 112 actions, including "Download Export", "Get a Newsletter", and "Get a Segment", and more. Refer to our Customer.io Documentation for detailed inputs and outputs.

No. Most automations are built visually on the canvas by picking triggers, actions, and mapping fields. You can add custom JavaScript with Functions when advanced logic is needed — but our customers do that in rare cases [4].

Yes. Connections are authenticated per account, credentials are encrypted at rest, and you can enforce approvals and team-level access controls on any automation.

The Customer.io integration on WEXTL runs directly on its vendor public API — every field name, authentication method, and rate limit is controlled by Customer.io official API and covered in documentation [3]. WEXTL handles the request signing and pagination for you.

Absolutely. Where Customer.io provides native webhooks, you can use instant triggers to eliminate polling delay. For custom webhooks, WEXTL offers Custom Webhook node, so you can start automation whenever Customer.io or any other service sends event to webhook URL.

WEXTL is an AI-first visual canvas. The platform allows you to describe automation in plain text — and AI will wire nodes for Customer.io inside the workflow builder [4]. You can also use built-in workflow nodes (AI Agent, Human in the Loop, Condition, Aggregate Results) in pair with Customer.io modules to craft complex integration flows with branches, filtering, and conditional logic. There are absolutely no limits of what you can build.

References

List of sources used to gather information about the Customer.io integration.

Customer.io integration source code, module specs and credentials implementation.
Internal Customer.io integration documentation, structured input and output parameters, scopes, and authentication methods.
Official Customer.io vendor API documentation — used to verify field meanings, authentication flows, and anything our own specs don't fully capture.
WEXTL® Visual Workflow Builder, anonymized data from our technical support team.
WEXTL® Apps Library
WEXTL® Customer.io App Documentation
WEXTL® Workflow Scheduler
WEXTL® HTTP node documentation

Customer.io Integration

Supported triggers and actions for Customer.io integration