Authenticate to the GHL Contacts API using OAuth 2.0. Obtain an access token, refresh it when needed, and securely store credentials in your GHL account. Use the token to authorize API requests from Zapier.
Authenticate the Zapier App Connector with your GHL account using OAuth 2.0. Create a connected app in Zapier, supply the client id and secret, and test the connection.
– GET /contacts/:contactId — Retrieve a single contact; – GET /contacts/:contactId/tasks — List tasks for a contact; – GET /contacts/:contactId/tasks/:taskId — Retrieve a specific task; – GET /contacts/:contactId/notes — List notes for a contact; – GET /contacts/:contactId/notes/:id — Retrieve a single note; – GET /contacts/:contactId/appointments — List appointments; – GET /contacts/ — List all contacts; – GET /contacts/business/:businessId — List contacts for a business; – POST /contacts/ — Create a contact; – PUT /contacts/:contactId — Update a contact; – DELETE /contacts/:contactId — Delete a contact; – POST /contacts/:contactId/tasks — Create a task; – PUT /contacts/:contactId/tasks/:taskId — Update a task; – PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed; – DELETE /contacts/:contactId/tasks/:taskId — Delete a task; – POST /contacts/:contactId/tags — Add a tag to a contact
Trigger when you need precise contact details by ID (GET /contacts/:contactId).
Actions: Retrieve the contact, plus related tasks, notes, and tags available for that contact.
GET /contacts/:contactId
contactId
Trigger to pull all tasks for a given contact (GET /contacts/:contactId/tasks).
Actions: Retrieve tasks, filter by status, and optionally update task fields.
GET /contacts/:contactId/tasks
contactId
Trigger when you want to mark a task as completed within a workflow.
Actions: Update the task by calling PUT /contacts/:contactId/tasks/:taskId/completed and set completed to true.
PUT /contacts/:contactId/tasks/:taskId/completed
contactId, taskId
Fast setup: connect in minutes without writing code.
Automate cross-platform workflows with data from Contacts API, tasks, notes, and appointments.
Centralized visibility: manage contacts and activities in one Zapier-powered flow.
Key terms and core processes used in this guide to help you implement the integration smoothly.
A specific URL you call to perform an action in the GHL Contacts API.
The process of verifying identity and permissions to access the API, commonly via OAuth 2.0 tokens.
The industry-standard protocol for authorizing access to APIs using access and refresh tokens.
A callback URL that notifies your app about events as they happen in real time.
Create a Zap that triggers on new contacts and automatically fills in a welcome task, notes, and a tag.
Sync tasks between MailWizz and GHL so your team sees updated statuses in real time.
Use tags to route contacts to different workflows in Zapier.
Gather GHL OAuth credentials and your Zapier app credentials before starting.
Enter base URL, scopes, and test the connection to ensure authorization succeeds.
Choose triggers and actions for Contacts API and run a test to verify data flow.
No extensive coding is required. This integration uses Zapier App Connector to orchestrate actions between GHL’s Contacts API and your MailWizz data. You can create powerful automation with triggers, actions, and searches without writing code. If you are comfortable with basic Zapier flows, you can extend functionality quickly using variables and filters.
You can access core contact data (name, email, phone), related tasks, notes, appointments, and tags via the Contacts API. The endpoints cover retrieval, creation, and updates, so you can sync activities across systems and keep data consistent.
Authentication is handled via OAuth 2.0. In Zapier, you’ll connect the GHL app and authorize access. Tokens are securely stored and refreshed automatically. If you need to revoke access, disconnect the app from Zapier.
Yes. API rate limits and quotas apply. The exact limits depend on your GHL plan and the Zapier plan. If you hit a limit, plan retries with exponential backoff and optimize requests by batching where possible.
Yes. You can create, update, and delete contacts, tasks, and notes using the appropriate endpoints. Zapier actions map to these endpoints so you can manage data from workflows.
If a request fails, Zapier will retry automatically based on its built-in retry logic. You can also review error messages in the task history and adjust your Zap configuration to avoid common failures.
API documentation is available in the GHL developer portal and in the Zapier App Connector docs. You’ll find endpoint details, example requests, and authentication steps to help you build and test your Zaps.
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Complete Operations Catalog - 126 Actions & Triggers
