Requests to the Contacts API are secured with OAuth 2.0 bearer tokens. Obtain an access token via your GHL account and include it in the Authorization header for each call.
Zapier stores and uses your app credentials securely. Depending on your app configuration, authorization may use OAuth 2.0 or API keys, and Zapier will manage token refreshing behind the scenes.
Key endpoints include: 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, 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: New or updated contact in GHL to start a Zap and push data to connected apps.
Actions: Find or Update Contact, Create Task, Add Note, Attach Tags
GET /contacts/:contactId
Key fields: contactId, email, name, phone
Trigger: Contact updated in GHL
Actions: Create Task, Add Note, Update Contact fields
PUT /contacts/:contactId
Key fields: contactId, status, notes, tags
Trigger: Form submission or inbound webhook from connected apps
Actions: Create Contact, Update Contact, Add Tag, Link Tasks
POST /contacts/
Key fields: contactId, email, firstName, lastName
Automate end-to-end workflows without writing code.
Keep data consistent across tools by syncing contacts, notes, and tasks automatically.
Build scalable processes with reusable Zap templates and triggers.
Key elements include endpoints, authentication, triggers, actions, and data mappings that move information between GHL and connected apps via Zapier.
Application Programming Interface that lets apps talk to each other and exchange data.
A specific URL in the API used to access a resource.
Authorization framework that grants limited access to a resource without sharing credentials.
A real-time HTTP callback that notifies apps when an event occurs.
Automatically route new contacts to the correct owner in your CRM and trigger related actions in connected apps.
Create and update tasks in your project tools when contact updates occur.
Sync contact notes to communication channels and activity logs.
Grab your GHL API credentials and configure the Zapier app to use OAuth 2.0 or API keys as supported.
Set up triggers like New Contact or Updated Contact and map fields to destination apps.
Run test checks, validate data mappings, and enable the Zap for ongoing automation.
Answer: The Contacts API supports OAuth 2.0 bearer tokens for secure access. Use your GHL credentials to obtain an access token, then include it in the Authorization header for each request. Zapier App Connector can manage OAuth flows or API keys depending on your app configuration. This ensures secure, streamlined authentication without exposing credentials in your workflows. In practice, you configure the connection in Zapier, authorize access, and test a sample call to confirm the token is valid and the endpoint returns expected data.
Answer: Common endpoints include fetching a contact, its tasks, notes, and appointments (GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments), creating or updating contacts (POST /contacts/, PUT /contacts/:contactId), and managing tasks (POST/PUT/DELETE /contacts/:contactId/tasks). Use these to build Zaps that trigger on new or updated contacts, then push data to connected apps or pull information back for synchronization.
Answer: Field mapping is done in Zapier by selecting source fields from the Contacts API (e.g., name, email, phone) and mapping them to fields in destination apps. Use consistent data types and consider transforming data (lowercasing emails, formatting dates) to maintain data integrity across systems.
Answer: Rate limits depend on your GHL plan and the Zapier think-time you configure. To avoid hitting quotas, batch requests when possible, implement exponential backoff on failures, and monitor usage in both platforms. If limits are reached, consider spacing out triggers or using incremental sync strategies.
Answer: Yes. In Zapier, you can run a test Zap using the built-in test feature to simulate triggers and actions with sample data. This helps verify mappings, data types, and flow logic before deploying to production. Always review error messages and adjust mappings or endpoints accordingly.
Answer: If data fails to sync, check authentication tokens, endpoint permissions, and field mappings. Review API responses for error codes and messages, correct any mismatched data types, and re-run tests. Implement retries and logging to diagnose intermittent issues.
Answer: Webhooks are supported where the source app can send real-time notifications to your Zapier endpoint. In the Contacts API, you can configure webhooks for events like contact creation or updates, enabling near-instant automation in your Zap workflows.
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Complete Operations Catalog - 126 Actions & Triggers
