To begin, securely authorize the GHL Contacts API in your Zapier workspace using OAuth 2.0 or the API key method. Scope: contacts.readonly ensures read access for map and sync operations.
During setup, connect Zapier App Connector to your GHL account to enable secure, token-based access. Use OAuth 2.0 where available and follow least-privilege access principles.
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. These endpoints enable reading, creating, updating, and managing contacts and related items within GHL via the Zapier App Connector.
Trigger: A contact is created or updated in GHL Contacts API to kick off a workflow in Basecamp via Zapier.
Actions: Create or update a contact (POST /contacts/, PUT /contacts/:contactId) and create tasks (POST /contacts/:contactId/tasks) within GHL from Basecamp events.
Sample methods: GET /contacts/:contactId, POST /contacts/, PUT /contacts/:contactId, POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId
Key fields: contactId, taskId, businessId, notesId, appointmentId
Trigger: A new task is created in GHL or a note is added to a contact to generate a corresponding Basecamp item.
Actions: Create or update tasks and notes in Basecamp; update task status via GHL endpoints as needed.
Paths: GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, POST /contacts/:contactId/tasks, POST /contacts/:contactId/notes
Fields: contactId, taskId, noteId
Trigger: A note is created or an appointment is scheduled for a contact in GHL.
Actions: Create notes and schedule/update Basecamp appointments using mapped endpoints.
Paths: GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments, POST /contacts/:contactId/notes, POST /contacts/:contactId/appointments
Fields: contactId, appointmentId, noteId
Fast setup with no code, enabling powerful automations between GHL and Basecamp.
Visual workflows in Zapier map GHL data to Basecamp actions, reducing manual data entry.
Centralized data flow and easier reporting across your CRM and project management tools.
Key elements include endpoints, authentication, triggers, actions, and data mapping; processes describe how data moves from GHL Contacts API to Basecamp via Zapier.
A set of rules that lets software programmatically access features or data from another service.
A specific URL path that performs a defined operation on data.
A method to verify identity and authorize access (OAuth 2.0, API keys).
A URL endpoint that receives real-time notifications when an event occurs.
Set a Zap that creates a Basecamp task whenever a new contact is added to GHL Contacts API, keeping your project list up to date.
Map notes from a GHL contact to Basecamp notes or conversations to preserve context.
When a contact is updated in GHL, automatically create or update a Basecamp appointment.
Log in to Zapier and connect your GHL account using OAuth 2.0 or API keys with the minimal required scope.
Select the Basecamp action in Zapier and map GHL Contacts fields to Basecamp tasks, notes, or events.
Run a test to ensure data flows correctly, then enable the Zap to automate ongoing sync.
You can set up this integration with no code using Zapier’s visual builder. The Zapier App Connector handles data routing between GHL and Basecamp via prebuilt triggers and actions. For more complex needs, light scripting within Zapier can extend functionality.
Supported authentication methods include OAuth 2.0 and API keys. For most setups, OAuth 2.0 provides secure, token-based access with scopes like ‘contacts.readonly’.
The Contacts API exposes endpoints for reading, creating, updating, and deleting contacts, tasks, notes, and appointments. Examples include GET /contacts/:contactId, POST /contacts/, PUT /contacts/:contactId, and more as listed in the integration guide.
Yes. Use field mapping in Zapier to align GHL contact fields with your Basecamp fields for tasks, notes, and events to ensure consistent data across tools.
Data sync can be near real-time depending on Zapier trigger frequency. You can also schedule batch updates if needed.
Use Zapier test runs to verify triggers and actions. Check task histories and logs to confirm data is flowing correctly.
Endpoint documentation is available in the API reference and the integration guide provided with this template.
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