GHL uses secure OAuth 2.0-based access for the Contacts API. You will request the scope contacts.readonly to read contact data. Keep tokens confidential and rotate credentials regularly.
In Zapier, connect your GHL account by signing in and authorizing the App Connector. This establishes a secure bridge to access Contacts data from workflows.
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: select a contact to fetch the latest data including tasks and notes for that contact.
Actions: retrieve contact details, pull tasks, pull notes, and assemble a consolidated view for downstream apps.
GET /contacts/:contactId
Key fields: contactId, firstName, lastName, email
Trigger: a new task is created for a contact, triggering downstream workflows.
Actions: create task, update task status, complete task, delete task.
POST /contacts/:contactId/tasks
Key fields: contactId, taskId, title, dueDate
Trigger: a new note is added to a contact.
Actions: list notes, add note, update note.
GET /contacts/:contactId/notes
Key fields: contactId, noteId, content
Automate CRM workflows without writing code, empowering non-developers to build integrations.
Seamlessly sync data between apps and trigger actions based on contact events.
Prototype processes quickly with real data and iterate to improve outcomes.
Key elements include endpoints, authentication, triggers, actions, and data mapping to connect GHL with Zapier App Connector.
A person entry in your Contacts database, identified by contactId.
A to-do item linked to a specific contact, used to track activities.
A text note attached to a contact for context and history.
A REST API route you call to perform read or write operations.
Set a trigger on contact creation and automatically generate a follow-up task in your project management tool.
Whenever a note is added to a contact, push the content to your centralized wiki or documentation space.
Post updates to Slack or Teams when a contact status or lifecycle field changes.
Sign in to both services and grant the necessary permissions for data access.
Select triggers such as contact created or updated to start automations.
Map fields and set up actions like creating tasks or notes to complete the workflow.
GHL supports OAuth 2.0 for secure access to the Contacts API, with scopes such as contacts.readonly. This keeps data read-only unless you request additional permissions. In Zapier, authorize the App Connector to securely access your GHL data. If you need write access, request the appropriate scopes and ensure your app complies with permission requirements. Always store credentials securely and rotate tokens on a schedule to protect sensitive contact information.
A solid starting point is GET /contacts/:contactId to fetch a single contact and its related tasks/notes. This gives you a baseline model for data structures. Then expand to GET /contacts/:contactId/tasks and GET /contacts/:contactId/notes to build multi-resource automations. Use these endpoints to map fields to your destination app in Zapier and start automating workflows quickly.
Yes. You can update a contact with PUT /contacts/:contactId and update tasks with PUT /contacts/:contactId/tasks/:taskId. This enables keeping data in sync across systems. To complete a task, use PUT /contacts/:contactId/tasks/:taskId/completed. Ensure your app handles concurrency and error responses gracefully to avoid data drift.
Endpoint rate limits depend on your GHL plan and API usage. Start with conservative polling and batch requests where possible. If you anticipate high throughput, consider implementing exponential backoff and caching strategies in Zapier to stay within quotas. Monitor API responses and adjust triggers to minimize redundant calls.
Data mapping in Zapier is done in the action step where you connect fields from GHL to the destination app. Use consistent field names like contactId, email, and task title to ensure reliable transfers. Validate mappings with sample runs and handle optional fields gracefully.
No heavy coding is required. You can set up triggers, actions, and field mappings directly in Zapier App Connector. For advanced scenarios, you can use custom webhooks or small scripts, but the core flow relies on the REST endpoints listed above. Always test each step with real data to confirm behavior.
Documentation for the Contacts API and Zapier App Connector is available in the developer resources section and the Zapier app directory. If you need further guidance, consult the knowledge base or contact support for step-by-step help. You can also join community forums to learn best practices and use cases.
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Complete Operations Catalog - 126 Actions & Triggers
