Access to the Contacts API requires proper credentials and scoped permissions. Use OAuth 2.0 or API keys with a minimum scope of contacts.readonly to read data, and elevate permissions when creating or updating records.
Marketing 360 authenticates to GHL using OAuth 2.0 tokens or API keys. Ensure your app is granted the appropriate scopes to read and write contacts, tasks, notes, and appointments.
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; permission: 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: a contact is created or updated in the Contacts API; Action: update the corresponding contact and create a related task in Marketing 360.
Actions: create or update contact fields, attach tasks, and log notes in Marketing 360 to reflect changes from Contacts API.
GET /contacts/:contactId to fetch details for sync
id, email, phone
Trigger: a new task is created in Marketing 360; Action: create a task under the related contact in Contacts API
Actions: POST /contacts/:contactId/tasks to generate tasks; update status as completed when completed
POST /contacts/:contactId/tasks
contactId, taskId, dueDate
Trigger: add a note or appointment in Contacts API; Action: mirror in Marketing 360 as a note or calendar entry
Actions: POST /contacts/:contactId/notes; POST /contacts/:contactId/appointments
POST /contacts/:contactId/notes
contactId, id
Zero code integration lets teams automate data flow without custom software or middleware.
Live data sync ensures the right teams act on the latest contact activity.
Repetitive tasks are automated with triggers and workflows to boost productivity.
This glossary covers API, endpoints, OAuth, and webhooks and explains how data elements map between Contacts API and Marketing 360.
A defined interface that allows software to communicate programmatically.
A standard for secure, token based authorization used to grant access to APIs.
A specific URL path in an API that performs a function or returns data.
A callback URL that a service calls to deliver real time information about events.
When a new contact is created in the API, automatically create onboarding tasks and a welcome note in Marketing 360.
Keep a complete activity timeline by syncing tasks and notes to Marketing 360 in real time.
Trigger campaigns in Marketing 360 based on contact events from the Contacts API, such as new lead or updated status.
Register your app in the developer portal and generate API keys; set scopes to include contacts.readonly for reads and appropriate write permissions for writes.
Choose the endpoints you will use and test them with sample data in a sandbox environment.
Create automation rules or Zapier-style workflows to connect Contacts API events to Marketing 360 actions; verify data integrity.
We support OAuth 2.0 token based authentication and API keys. Use OAuth for user consent flows and API keys for server to server calls. Choose the method that fits your deployment and ensure tokens or keys have the required scopes (read or write).
Read endpoints are primarily GET requests that fetch contacts, tasks, notes, and appointments. Write endpoints use POST, PUT, and DELETE to create or modify data such as contacts and tasks. Ensure your app has the correct scopes, especially contacts.write for modifications.
Test in a sandbox with known IDs and sample data to validate responses. Enable detailed logging and error messages to diagnose issues. Implement retries with backoff for transient failures.
Rate limits vary by plan and endpoint. Monitor response headers for quota information and implement exponential backoff. Cache frequently requested data when appropriate.
Yes. You can create and attach notes, tasks, and appointments via the API, linking them to specific contacts. Use endpoints such as POST /contacts/:contactId/tasks and POST /contacts/:contactId/notes.
Implement exponential backoff for retries and respect any Retry-After headers. Use idempotent requests where possible to avoid duplicates.
Webhooks provide real-time event delivery to your app. Configure callbacks for contact changes, task updates, and notes, and combine with batch processing for efficiency.
Due to high volume, we will be upgrading our server soon!
Complete Operations Catalog - 126 Actions & Triggers
