To use the Contacts API you must authenticate requests with an API key or OAuth token from your GHL account. Include the token as a Bearer token in every request over HTTPS.
Connect the Zapier App Connector to Klaviyo by providing the required OAuth credentials or API keys. Zapier handles token exchange securely and requests the minimum scopes needed for read and write access.
GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/tasks/:taskId, GET /contacts/:contactId/notes, GET /contacts/:contactId/notes/:id, GET /contacts/:contactId/appointments, GET /contacts/, GET /contacts/business/:businessId, contacts.write, POST /contacts/, PUT /contacts/:contactId, DELETE /contacts/:contactId, POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, PUT /contacts/:contactId/tasks/:taskId/completed, DELETE /contacts/:contactId/tasks/:taskId, POST /contacts/:contactId/tags
Trigger: when a contact is created or updated in GHL, sync or update the corresponding Klaviyo profile.
Action: use POST /contacts/ to create a Klaviyo profile or PUT /contacts/:contactId to update it. Map key fields such as email, first_name, last_name and Klaviyo specific properties.
POST /contacts/ for create; PUT /contacts/:contactId for updates
Key fields: email, external_id
Trigger: when a contact in GHL is updated, pull the latest details from Klaviyo to refresh the GHL profile.
Action: GET Klaviyo profile data and push to GHL contact fields as needed.
GET /contacts/:contactId or equivalent Klaviyo endpoint to fetch data
Key fields: contactId, klaviyo_id
Trigger: when a contact’s tasks or notes are added or updated in GHL, sync to Klaviyo profile properties.
Actions: GET /contacts/:contactId/tasks and GET /contacts/:contactId/notes and map to Klaviyo profile fields.
GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes
Key fields: contactId
No code setup lets you start syncing data quickly without custom development.
Real time data sync between GHL and Klaviyo enables timely marketing actions.
Easy maintenance with visual workflows and straightforward data mapping.
This glossary defines endpoints, triggers, actions, mapping and data flow between GHL and Klaviyo via the Zapier App Connector.
Application Programming Interface. A set of rules that enables software components to communicate.
A specific URL path and HTTP method used to access a resource, for example GET /contacts/:contactId.
OAuth 2.0 is an authorization framework used to securely obtain access tokens.
A real time notification mechanism that triggers when a specific event occurs in a service.
Create a Zapier workflow that adds a new Klaviyo profile when a new contact is created in GHL and triggers a welcome email sequence.
Map GHL tags to Klaviyo segments so customers are automatically categorized for targeted campaigns.
Trigger Klaviyo cart recovery flows when GHL tasks or notes indicate an abandoned cart action.
Authenticate GHL and Zapier, then select the Contacts API in the Zapier App Connector.
Map email, first name, last name and Klaviyo properties to the corresponding GHL fields.
Run a test, verify data flow, and activate the automation for ongoing syncing.
No coding is required. The Zapier App Connector provides a visual workflow builder to connect GHL Contacts API with Klaviyo. You can configure triggers and actions to sync data without writing code. If you need more complex behavior, you can still extend workflows with conditional logic in Zapier.
For basic sync you typically use GET by contactId to pull existing data and POST to create new Klaviyo profiles. You can map essential fields such as email, first and last name, and add key identifiers to ensure you are updating the correct profile.
Data transfers are secured with HTTPS and token based authentication. OAuth2 or API keys are used to grant scoped access, and Zapier handles token refresh and secure storage. Always follow best practices for secret management.
Yes. You can map custom fields from GHL to Klaviyo properties. In addition to standard fields like email and name, you can sync tags, notes, and task statuses as custom Klaviyo properties.
Use the built in test feature in Zapier to simulate a run, verify data mapping, and inspect the payloads. Check for error messages and confirm that Klaviyo profiles update as expected before turning on live automation.
Yes, when configured with triggers and polling, data can flow in near real time. The cadence depends on the frequency of your Zap runs and the source events in GHL.
If a contact is deleted in GHL the behavior depends on your workflow. You can set up an action to remove or archive the corresponding Klaviyo profile, or to stop updates for that contact. Ensure you have a clear data governance rule in your automation.
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Complete Operations Catalog - 126 Actions & Triggers
