Authenticate requests to the Contacts API using OAuth 2.0 or API keys as configured in your GHL developer settings. Ensure the scope matches contacts.readonly.
APPNAME authentication uses its own access tokens or API keys. Combine with GHL credentials to securely access and synchronize contact data.
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: when a contact is updated in APPNAME, fetch the latest data from GHL via GET /contacts/:contactId.
Actions: map fields to APPNAME, update tasks and notes through endpoints 2 and 4, and create links to appointments when available.
GET /contacts/:contactId
contactId, firstName, lastName, email, phone, status
Trigger: new or updated contacts in APPNAME trigger a batch sync via GET /contacts
Actions: sync core fields, apply tags using POST /contacts/:contactId/tags, and update notes as needed
GET /contacts/
contactId, name, email, tags
Trigger: when a task is created in APPNAME triggers an automatic follow up via GET /contacts/:contactId/tasks
Actions: create tasks in APPNAME from GHL and update status with PUT /contacts/:contactId/tasks/:taskId/completed
GET /contacts/:contactId/tasks
contactId, taskId, status, dueDate
Fast setup with no code automation and drag and drop mapping between Contacts API and APPNAME.
No coding required to create powerful workflows; you can automate data flows with a visual builder.
Centralized control over contact data across systems with consistent sync rules.
This glossary defines the key elements and processes used in this guide including endpoints, triggers, actions, and field mappings.
A specific URL path used to retrieve or modify resources in the API.
An event that starts an automation or data flow between GHL and APPNAME.
The method used to verify identity and authorize API calls, such as OAuth 2.0 or API keys.
The process of aligning and transforming data fields between systems during integration.
Use webhooks and GET endpoints to push up-to-date contact changes from APPNAME to GHL for instant visibility.
Migrate historical contact records from APPNAME into GHL with minimal downtime using the POST and PUT endpoints.
Automatically create and update follow-up tasks in APPNAME when activity occurs in GHL via the tasks endpoints.
Obtain and exchange access tokens for both systems to authorize API calls.
Set up the correct endpoints and field mappings to align data between GHL and APPNAME.
Run tests and set up monitoring to ensure data syncing remains reliable.
Yes, the Contacts API enforces rate limits to protect service performance. If you hit the limit, back off and retry after a short delay. Consider batching requests where possible to stay within limits.
Yes. You can fetch a contact’s tasks and notes by combining the relevant endpoints in a workflow. For example, GET /contacts/:contactId/tasks and GET /contacts/:contactId/notes can be orchestrated together.
We support OAuth 2.0 and API key based authentication. Use OAuth for user delegated access and API keys for app to app access.
Field mapping is performed in the integration setup. Align fields like firstName, lastName, email, and phone with your APPNAME schema and define mapping rules.
Yes. Create or update contacts in APPNAME and use the Contacts API to synch data into GHL as needed.
Use standardized error handling, and implement exponential backoff for retries to handle transient errors gracefully.
Endpoint docs are available in the GHL developer portal and in this guide; the endpoint list above provides quick references to the most commonly used paths.
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Complete Operations Catalog - 126 Actions & Triggers
