Authenticate your GHL account to allow Zapier to access Contacts API data. Use OAuth2 or API keys as supported by your app and grant the required scopes.
Google Calendar authentication uses OAuth2. Grant Zapier permission to view and manage calendar events for seamless sync with Contacts data.
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. Additional endpoints are available for notes, appointments, and tags as needed for automation.
Trigger when a contact task is created or updated; Zapier creates or updates a calendar event accordingly.
Actions include creating or updating event details, setting reminders, and attaching task data to the event.
Method path example: POST /contacts/:contactId/tasks to create a task, then use task data to populate a calendar event via available calendar event creation flow.
Key fields: contactId, taskId, due date, calendarId, eventSummary.
Trigger when a note is added or updated for a contact; the note content is appended to the related event description.
Actions: update event description, attach notes, and reflect important context from notes in the calendar entry.
Method path: GET /contacts/:contactId/notes to fetch notes; PUT /contacts/:contactId/notes/:id to update; apply changes to corresponding calendar events.
Key fields: noteId, eventId, contactId, noteContent.
Trigger when calendar events are created or updated; create or update a matching task on the contact.
Actions: create or update contact tasks, update statuses, and link back to the calendar event.
Method path: GET /contacts/:contactId/appointments to fetch events; POST /contacts/:contactId/tasks to create related tasks.
Key fields: eventId, taskId, contactId, dueDate, status.
Automate scheduling and data entry without writing code.
Achieve real time data flow between contacts and calendar with no coding required.
Centralize workflows for improved productivity and accuracy.
This section covers APIs, endpoints, triggers, actions, and data fields used to connect the GHL Contacts API with Google Calendar.
An API is a set of rules that lets two software systems communicate.
OAuth is an authorization framework that lets apps access user data securely.
An endpoint is a specific URL at which an API can be accessed.
A webhook delivers real time data from one system to another.
Set up a Zap to turn due tasks into calendar events with reminders.
Attach contact notes to events to keep context and history.
When calendar events are updated, reflect changes in the associated contact data for accuracy.
Sign in to Zapier, select Google Calendar and Contacts API, then grant the required permissions.
Map fields between contacts and calendar data and define the flow of information.
Run tests, review results, and switch the automation on when ready.
No coding is required for a basic setup with Zapier. The UI guides you through triggers and actions. You can create useful automations without writing code. If you are comfortable with the API, understanding endpoints helps you tailor your flows.
You typically need read access for contacts and appropriate write access for events and tasks. OAuth scopes and API keys must be granted by the user, and re-authentication may be needed if permissions change.
Yes. You can customize event title, date, location, attendees, and description to reflect contact data. You can also tailor notes and attachments to fit your workflow.
Plan for conflicts by setting priority rules in Zapier and using deduplication strategies. Use unique IDs to prevent duplicates and sync status between systems.
Zapier offers a test mode to simulate flows before going live. Check task and event mappings in the test results and review logs for any mismatches.
For a basic sync, you typically need endpoints to fetch contacts, tasks, notes, and appointments (GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/appointments). Additional create/update endpoints enable full automation.
If authentication fails, re-authenticate in Zapier, verify the granted scopes, and ensure the redirect URLs are correct. Check OAuth consent screens and API keys if used.
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