Access to the Contacts API uses your API credentials or OAuth tokens scoped to contacts.readonly. Store credentials securely and renew tokens before expiry.
Zapier authenticates via API key or OAuth depending on the connection type chosen. For this integration, use the API key from your GHL developer account and grant relevant scopes.
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, GET /contacts/, 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 your Zap when a new contact is created or an existing contact is updated in GHL.
Actions: Create or update the contact in your CRM, fetch contact tasks, or attach notes.
GET /contacts/:contactId
contactId, email, firstName, lastName
Trigger: New or updated tasks for a contact.
Actions: Retrieve tasks, update task status, or create new tasks.
GET /contacts/:contactId/tasks
contactId, taskId, status, dueDate
Trigger: Note added or updated for a contact.
Actions: Retrieve notes, create notes, or attach new notes.
GET /contacts/:contactId/notes
contactId, noteId, content
Automate data flow from your Contacts records to your Checkout Page without writing code.
Trigger actions across apps instantly when a contact is updated.
Centralize contact data and keep your Checkout Page synced.
Understand the main components: endpoints, triggers, actions, and data mapping that enable seamless automation between GHL and the Zapier App Connector.
A specific URL and method through which you access a resource on the GHL API.
An event in GHL that starts a Zap workflow, such as a new contact or updated task.
The process of proving identity to the GHL API to gain access to resources.
A URL that GHL can post events to, enabling real-time integrations.
When a checkout occurs, Zapier can create or update the corresponding contact in GHL, syncing data to the Contacts API.
Create tasks in the GHL system when a new order is placed or a note is added.
Automatically append notes to a contact when order status changes.
Obtain API credentials from GHL and connect Zapier App Connector to the Contacts API.
Map contact fields (email, name, phone) to your Checkout Page fields in Zapier.
Run a test, verify triggers and actions, then enable the Zap.
The Contacts API supports API key authentication and OAuth tokens scoped to your needs. Begin by creating an API key in your GHL developer dashboard and grant the minimal scopes required for your project. If your organization uses OAuth, ensure the access token is refreshed before expiry to avoid interruptions. For Zapier connections, store credentials securely and use environment variables to keep keys out of your code.
Key endpoints for a Checkout Page workflow include retrieving a contact, listing tasks, and reading notes. GET /contacts/:contactId fetches a contact record; GET /contacts/:contactId/tasks retrieves tasks related to the contact; GET /contacts/:contactId/notes returns notes. Additional endpoints like POST /contacts/ or PUT /contacts/:contactId allow creating or updating data as part of end-to-end automation.
Data mapping is done in Zapier by selecting fields from the Contacts API response and aligning them with your Checkout Page fields (email, name, address, etc.). Use consistent field names and formats to prevent data mismatches. Validate mappings during test runs and adjust for any custom fields you track in GHL.
GHL imposes rate limits based on your plan and endpoint usage. Plan for bursts during checkout events and implement retries with exponential backoff. If you hit limits, consider spacing requests or batching data where possible, and review your Zapier task history for optimization opportunities.
Yes. You can trigger actions from order events by wiring triggers to contact-related endpoints or by using webhooks to capture order status changes. This allows your Zap to update CRM data, create follow-up tasks, or append notes when orders move through stages.
Webhooks provide real-time updates by posting events from GHL to your Zapier webhook URL. They are optional if you prefer polling endpoints, but webhooks reduce latency and improve responsiveness for checkout-driven automations.
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Complete Operations Catalog - 126 Actions & Triggers
