Use OAuth 2.0 with the scope contacts.readonly to securely access data. Ensure your GHL account is linked to your Zapier App Connector connection to authorize requests to the Contacts API.
Zapier App Connector handles authentication via OAuth 2.0 for connected apps or API keys where configured. Set the GHL Contacts API connection to the appropriate scope (contacts.readonly) and authorize the connection in Zapier.
– 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 for a contact – GET /contacts/:contactId/notes — List notes for a contact – GET /contacts/:contactId/notes/:id — Retrieve a specific note for a contact – GET /contacts/:contactId/appointments — List appointments for a contact – GET /contacts/ — Retrieve all contacts (with optional filters) – GET /contacts/business/:businessId — Retrieve contacts by business ID – contacts.write — (Capability flag) write permissions for contacts – POST /contacts/ — Create a new contact – PUT /contacts/:contactId — Update a contact – DELETE /contacts/:contactId — Delete a contact – POST /contacts/:contactId/tasks — Create a task for a contact – PUT /contacts/:contactId/tasks/:taskId — Update a specific task for a contact – PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed – DELETE /contacts/:contactId/tasks/:taskId — Delete a task for a contact – POST /contacts/:contactId/tags — Add tags to a contact
Trigger: New or updated contact in GHL is synced to Zapier via Waitwhile workflow
Actions: Create or update a contact in GHL, attach related notes, and create initial tasks
Method/Path: POST /contacts/ to create; PUT /contacts/:contactId to update; GET /contacts/:contactId for verification
Key fields: contactId, name, email, phone, ownerId
Trigger: New contact is added under a business or updated in GHL
Actions: Pull list of contacts (GET /contacts/ and GET /contacts/business/:businessId), map fields to your destination app
Method/Path: GET /contacts/; GET /contacts/business/:businessId
Key fields: contactId, businessId, name, email
Trigger: Task updated or created for a contact in GHL
Actions: Create, update, or complete tasks; synchronize with Waitwhile tasks
Method/Path: POST /contacts/:contactId/tasks; PUT /contacts/:contactId/tasks/:taskId; PUT /contacts/:contactId/tasks/:taskId/completed; DELETE /contacts/:contactId/tasks/:taskId
Key fields: contactId, taskId, title, status, dueDate
Rapid automation with ready-made triggers and actions—no coding required
Unified data flows between GHL and external tools for consistent records
Scalable workflows that adapt as endpoints or data models change
A concise glossary of terms used throughout this integration guide to help you design effective automations.
A specific URL and HTTP method used to interact with a resource in an API.
The process of proving identity and permissions to access the API.
An event that starts an automation in Zapier, such as a new contact or updated record.
An operation performed in response to a trigger, such as create or update a record.
Trigger on Waitwhile events and create or update a contact in GHL, then attach related tasks and notes automatically.
Sync due dates from Waitwhile into GHL tasks to keep teams aligned on follow-ups and appointments.
Mirror notes between GHL and Waitwhile to preserve a complete activity history across systems.
In Zapier, add a new connection by selecting the GHL Contacts API and authenticate with OAuth 2.0 using the scope contacts.readonly.
Select trigger events (e.g., New or Updated Contact) and map fields to contact properties, tasks, or notes.
Test the integration, verify data flows through the endpoints, and review logs for troubleshooting.
GHL supports OAuth 2.0 tokens for secure access to the Contacts API. Use a token with the scope of contacts.readonly to fetch data. For write operations (create, update, delete), ensure your connection uses the appropriate write-enabled scope. In Zapier, you’ll connect the GHL Contacts API and authorize using your GHL account. This maintains secure, permission-controlled access for your automation workflows. If you’re using a shared integration, consider token rotation and minimum required scopes to minimize risk and ensure compliance with your organization’s security policies.
The primary endpoints you’ll use are for retrieving and managing contacts, their related tasks, notes, and basic business context. This includes GET /contacts/:contactId to fetch a contact, GET /contacts/:contactId/tasks to list tasks, and POST /contacts/ to create new contacts. Depending on your workflow, you may also access notes, appointments, and batch operations like listing all contacts with GET /contacts/. These endpoints cover typical CRUD operations needed for waitlist and CRM automation.
Yes. Zapier can create new contacts via POST /contacts/ and update existing ones via PUT /contacts/:contactId. Deleting a contact is also possible with DELETE /contacts/:contactId if your workflow requires it. When performing destructive actions, consider adding confirmation steps or safe-guards in your Zap to prevent accidental data loss.
To sync tasks and notes, map the relevant endpoints in your Zap: use POST /contacts/:contactId/tasks to create tasks, PUT /contacts/:contactId/tasks/:taskId to update tasks, and PUT /contacts/:contactId/tasks/:taskId/completed to mark completion. For notes, use GET /contacts/:contactId/notes to pull notes and POST /contacts/:contactId/notes to add new ones. This enables a two-way flow between GHL and Waitwhile as needed.
Rate limits depend on your GHL plan and the Zapier plan you’re using. Typical usage should stay well within standard quotas, but heavy automation with frequent reads and writes may approach limits. If you hit limits, you can stagger actions or implement exponential backoff in your Zap workflows. Monitoring API usage in the GHL dashboard is recommended.
No coding is required for typical automations. Zapier App Connector lets you configure triggers, actions, and mappings through a visual interface. For advanced scenarios, you can still leverage optional scripts or multi-step Zaps, but most workflows can be built using the endpoints described above without writing code.
Zapier provides logs for each integration run, including request and response details. You can view these in the Task History or connected app’s test run logs to diagnose failures, review field mappings, and verify data flows between GHL and your applications.
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