Obtain an OAuth 2.0 access token for the Contacts API with the required scope: contacts.readonly. Use this token to authorize read operations on contacts, tasks, notes, and appointments.
Configure OAuth 2.0 in Zapier for the App Connector to securely access GHL. Provide client ID, client secret, and set the redirect URL; ensure the access token carries the contacts.readonly (and any needed) scopes.
Endpoints and scopes you may use: 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
When a new contact is created or updated in GHL, fetch contact details along with tasks, notes, and appointments via GET endpoints.
Use GET /contacts/:contactId and related endpoints to populate your app, trigger workflows, or update records in your system.
GET /contacts/:contactId
id, name, email, phone, company, tag list, lastActivity
A new or updated record in your app triggers creation or update of a GHL contact.
Post to /contacts/ to create a new contact; map fields like name, email, phone, and custom fields.
POST /contacts/
name, email, phone, businessId, customFields
Task status changes in your app trigger updates to GHL tasks.
Update tasks with PUT /contacts/:contactId/tasks/:taskId or mark as completed with PUT /contacts/:contactId/tasks/:taskId/completed.
PUT /contacts/:contactId/tasks/:taskId/completed
contactId, taskId, status, completed
No-code automation lets you connect GHL Contacts API with Zapier App Connector quickly without writing code.
Bi-directional data syncing reduces manual data entry and keeps teams aligned.
Reusable workflows, triggers, and actions can be shared across teams for faster deployment.
This glossary covers core terms and processes for connecting GHL with Zapier App Connector: authentication, endpoints, triggers, actions, and data mapping.
Application Programming Interface—a set of rules that allows software to communicate with GHL.
Authorization framework used to obtain access tokens for API requests.
A specific URL path that performs a function on GHL data.
Permissions granted to an access token that determine which operations are allowed.
Automatically sync new or updated contact details to your CRM, marketing list, or ERP via Zapier.
Mark GHL tasks as completed automatically when a related event happens in your app.
Log notes and activities to your app to build a complete activity timeline for each contact.
Create the OAuth app in Zapier, obtain client credentials, and authorize with GHL to obtain access tokens.
Select the relevant endpoints (e.g., GET /contacts/:contactId, POST /contacts/) and map fields such as id, name, email, and custom fields.
Run tests for triggers and actions, review logs, and deploy your integration to production.
To authenticate with the GHL Contacts API, you typically use OAuth 2.0 to obtain an access token with the required scopes (e.g., contacts.readonly). Include the token in the Authorization header of each request. If your app requires only read access, ensure the token is scoped accordingly. Regularly refresh tokens to maintain uninterrupted access. In Zapier, configure the OAuth flow in your app settings to handle token retrieval and refresh automatically.
For syncing contacts, start with GET /contacts/:contactId to fetch a single contact and GET /contacts/ to list contacts. Use POST /contacts/ to create new contacts when needed. Tasks, notes, and appointments can be pulled via their respective endpoints to enrich the data in your app. Map essential fields such as id, name, email, phone, and custom fields to ensure consistent data in your workflows.
Yes. If you have the necessary scopes (e.g., contacts.write), you can POST /contacts/ to create and PUT /contacts/:contactId to update existing contacts. Be sure to validate data before sending requests and implement error handling for conflicts, such as duplicate emails. Consider using idempotent actions where possible to prevent duplicates.
Data mapping is done in the Zapier app setup. Create fields in your Zap that correspond to GHL’s response attributes (id, name, email, phone, etc.). Use transformation steps as needed to format data (e.g., trimming, concatenation, or date formatting) before sending to or receiving from GHL.
The primary read-only scope is contacts.readonly. If you need write capabilities, request or configure additional scopes such as contacts.write. Always apply the principle of least privilege—grant only the permissions necessary for your workflow.
A Zapier App Connector account is enough to configure and deploy the integration. Depending on your needs, you may also require API or developer access for client credentials and OAuth setup. Zapier handles authentication flows for you, reducing the need for custom development.
Use Zapier’s built-in test feature to simulate triggers and actions. Verify API responses, check for rate limits, and review error messages. Once tests pass, deploy the workflow to production and monitor the task history to catch any issues early.
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