How to Connect Zapier App Connector to Contacts API for WhatsApp Notifications

Connecting Contacts API with Zapier App Connector for WhatsApp Notifications

How to connect Contacts API with Zapier App Connector

Learn how to securely link Contacts API to Zapier App Connector to trigger WhatsApp messages, fetch contact data, and automate notifications. This guide walks you through authentication, endpoint access, and practical use cases.

Authentication for Contacts API

Access to the Contacts API requires valid credentials with the scope set to contacts.readonly for read operations. Use your GHL API key and OAuth flow to securely authorize requests, then test each connection in the Zapier App Connector.

Authentication with Zapier App Connector

Zapier App Connector authenticates to GHL using OAuth 2.0 and, where required, API keys. Configure the connection in the Zapier dashboard, grant the necessary scopes (such as contacts.readonly and contacts.write), and verify the connection with a test action.

Available Endpoints for Contacts API

GET /contacts/:contactId — Retrieve a single contact GET /contacts/:contactId/tasks — List tasks for a contact GET /contacts/:contactId/tasks/:taskId — Get a specific task GET /contacts/:contactId/notes — Get notes for a contact GET /contacts/:contactId/notes/:id — Get a specific note GET /contacts/:contactId/appointments — Get appointments for a contact GET /contacts/ — List all contacts GET /contacts/business/:businessId — Get contacts by business contacts.write — OAuth scope with write access to contacts POST /contacts/ — Create a new contact PUT /contacts/:contactId — Update a contact DELETE /contacts/:contactId — Delete a contact POST /contacts/:contactId/tasks — Create a task for a contact PUT /contacts/:contactId/tasks/:taskId — Update a task PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed DELETE /contacts/:contactId/tasks/:taskId — Delete a task POST /contacts/:contactId/tags — Add tags to a contact

Top 3 Connections between Contacts API and Zapier App Connector

1) Retrieve a contact and trigger WhatsApp messages

Trigger when a contact is created or updated in the Contacts API to push a WhatsApp notification via Zapier.

Actions: GET /contacts/:contactId to fetch details; GET /contacts/:contactId/tasks to pull tasks; PUT /contacts/:contactId to update; POST /contacts/:contactId/tasks to create tasks.

Method path example: GET /contacts/:contactId (retrieve), POST /contacts/ (create) or PUT /contacts/:contactId (update).

Key fields: contactId, name, email, phone, status, lastUpdated

Top 3 Connections between Contacts API and Zapier App Connector

2) Access contact notes for context

Trigger when a note is added or updated for a contact.

Actions: GET /contacts/:contactId/notes, GET /contacts/:contactId/notes/:id

GET /contacts/:contactId/notes

contactId, noteId, note, timestamp

Top 3 Connections between Contacts API and Zapier App Connector

3) List all contacts for bulk operations

Trigger when a new contact is added or when bulk sync is required.

Actions: GET /contacts/ to list, GET /contacts/business/:businessId to filter by business; fetch individual records as needed.

GET /contacts/

contactId, name, email

No-code benefits of connecting Contacts API with Zapier App Connector

Automate WhatsApp notifications without writing code by connecting contacts data to your workflows.

Consolidate data flows and actions in one platform for faster deployments.

Easily test, optimize, and reuse Zap templates across teams.

Key Terms and Glossary

The following terms and processes describe how the integration works between the GHL Contacts API and the Zapier App Connector to drive WhatsApp notifications.

Contacts API

The GHL API surface used to access and manage contact records, which includes endpoints for contacts, tasks, notes, and appointments.

Webhook

A real-time notification mechanism that can trigger automations when data changes.

OAuth 2.0

Authorization framework used to grant app access to GHL resources without exposing user credentials.

API Endpoint

A URL and method pair used to perform operations on GHL resources.

People also Search for:

3 Creative Ideas for Integrating Contacts API with Zapier App Connector

Idea 1: WhatsApp alerts for high-priority contacts

Create a Zap that sends a WhatsApp message whenever a key contact moves to a high-priority status, using a dynamic template with the contact’s name and the next action.

Idea 2: Auto-tagging and task creation from messages

When notes are added, automatically tag the contact and create a follow-up task to keep the conversation on track.

Idea 3: Bulk sync and reporting dashboards

Periodically sync contacts and summarize activity in a dashboard to spot engagement trends and optimize messaging.

3 Simple Steps to Connect Contacts API with Zapier App Connector

Step 1: Prepare credentials

Collect your GHL API credentials and configure OAuth in Zapier’s App Connector.

Step 2: Establish connection

Authenticate, select scopes (contacts.readonly, contacts.write), and run a test to confirm connectivity.

Step 3: Build your WhatsApp workflow

Create Zap templates to trigger WhatsApp messages from Contacts API events and map fields to your message template.

Frequently Asked Questions

What authentication methods are supported?

You can authenticate using OAuth 2.0 and, where supported, API keys. In the Zapier App Connector, configure a secure connection to the Contacts API and choose the appropriate scope (typically contacts.readonly for reading data). Ensure tokens are valid and refreshed automatically. If your organization requires additional security, use server-to-server authentication and rotate credentials regularly. Zapier provides built-in testing tools to verify the connection and access levels before going live.

For WhatsApp notifications, you will commonly access endpoints that retrieve contact data and related items (notes, tasks) to build context for messages, such as GET /contacts/:contactId, GET /contacts/:contactId/notes, and GET /contacts/:contactId/tasks. When actions are needed, POST /contacts/ to create or PUT /contacts/:contactId to update records, then pass the resulting data to your WhatsApp message template in Zapier. Use the endpoint list to tailor your workflow to your exact notification scenario.

Typically you will need both read and write scopes (for example, contacts.readonly and contacts.write) to fetch data and perform updates or create tasks. Configure these scopes in the Zapier App Connector when establishing the GHL connection, and ensure your app user has permission to access the resources required by your workflow. If your workflow only reads data, you can operate with the readonly scope to minimize permission surface.

Yes. You can trigger actions from notes by listening to the notes endpoints (for example, GET /contacts/:contactId/notes) and wiring them into a Zap that sends WhatsApp messages or creates follow-up tasks. This enables responsive, context-aware notifications based on note updates or additions. Combine notes events with contact data to craft richer, personalized messages.

Use Zapier’s test connections and sample data to verify the integration. Start by authenticating the GHL connection, then run a test pull for a known contact to validate fields mapping. Use test tasks, notes, and contacts responses to confirm your templates render correctly and that messages trigger as expected. Iterate with real-but-safe data to ensure reliability before going live.

If a contact is deleted, the API will typically return an error or a 404 for that resource. Implement graceful error handling in your Zap to skip or retry as appropriate, and consider using archival flags or business rules to handle inactive contacts. Your dashboard and reporting should reflect the change to avoid sending messages to non-existent recipients. Maintain a fallback workflow to notify your team if critical contacts are removed.

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🚀 GoHighLevel Integration

Complete Operations Catalog - 126 Actions & Triggers

126
Total Operations
55
Polling Triggers
71
Actions
14
Categories
👥

Contacts

10 Triggers 18 Actions
Trigger
Get Contact
Retrieve a specific contact by ID
Trigger
Search Contacts
Advanced search with filters
Trigger
Get Contacts by Business
Retrieve contacts linked to a business
Trigger
Get Duplicate Contact
Check for duplicate contacts
Trigger
Get Contact Appointments
List all appointments for a contact
Trigger
Get Contact Tasks
Retrieve all tasks for a contact
Trigger
Get Contact Task by ID
Get specific task details
Trigger
Get Contact Notes
List all notes for a contact
Trigger
Get Contact Note by ID
Retrieve specific note details
Trigger
List Contacts (Deprecated)
Legacy contact listing method
Action
Create Contact
Add a new contact to the system
Action
Update Contact
Modify existing contact information
Action
Find Contact
Search by email, phone, or ID
Action
Delete Contact
Remove a contact permanently
Action
Upsert Contact
Create or update contact automatically
Action
Add Tags to Contact
Tag contacts for organization
Action
Remove Tags from Contact
Remove specific tags
Action
Bulk Update Contact Tags
Add or remove multiple tags at once
Action
Create Contact Task
Add a new task for a contact
Action
Update Contact Task
Modify existing task details
Action
Complete Contact Task
Mark task as complete
Action
Delete Contact Task
Remove a task permanently
Action
Create Contact Note
Add notes to contact records
Action
Update Contact Note
Edit existing notes
Action
Delete Contact Note
Remove notes from contacts
Action
Add Contact to Campaign
Enroll contact in campaign
Action
Remove from Campaign
Remove contact from specific campaign
Action
Remove from All Campaigns
Unenroll from all campaigns
📅

Calendars & Appointments

13 Triggers 21 Actions
Trigger
List Calendar Groups
Get all calendar groups
Trigger
List Calendars
Retrieve all calendars
Trigger
Get Calendar by ID
Get specific calendar details
Trigger
Get Free Slots
Check calendar availability
Trigger
List Calendar Events
Get all scheduled events
Trigger
List Blocked Slots
View unavailable time slots
Trigger
Get Appointment
Retrieve appointment details
Trigger
List Appointment Notes
Get notes for appointments
Trigger
List Calendar Notifications
View notification settings
Trigger
Get Calendar Notification
Get specific notification
Trigger
List Calendar Resources
View rooms and equipment
Trigger
Get Calendar Resource
Get specific resource details
Action
Create Calendar Group
Set up new calendar group
Action
Update Calendar Group
Modify calendar group settings
Action
Update Group Status
Enable or disable calendar group
Action
Delete Calendar Group
Remove calendar group
Action
Validate Group Slug
Check if slug is available
Action
Create Calendar
Add new calendar
Action
Update Calendar
Modify calendar settings
Action
Delete Calendar
Remove calendar permanently
Action
Create Appointment
Book new appointment
Action
Update Appointment
Modify appointment details
Action
Delete Event
Cancel and remove event
Action
Create Block Slot
Block time on calendar
Action
Update Block Slot
Modify blocked time
Action
Create Appointment Note
Add notes to appointments
Action
Update Appointment Note
Edit appointment notes
Action
Delete Appointment Note
Remove appointment notes
Action
Create Calendar Notification
Set up reminders
Action
Update Notification
Modify notification settings
Action
Delete Notification
Remove notification
Action
Create Calendar Resource
Add room or equipment
Action
Update Calendar Resource
Modify resource details
Action
Delete Calendar Resource
Remove resource
💼

Opportunities

3 Triggers 7 Actions
Trigger
Search Opportunities
Find opportunities with filters
Trigger
Get Opportunity
Retrieve specific opportunity
Trigger
List Pipelines
View all opportunity pipelines
Action
Create Opportunity
Add new sales opportunity
Action
Update Opportunity
Modify opportunity details
Action
Delete Opportunity
Remove opportunity
Action
Update Opportunity Status
Change status (open, won, lost)
Action
Upsert Opportunity
Create or update opportunity
Action
Add Followers
Assign team members to follow
Action
Remove Followers
Unassign followers
👤

Users

4 Triggers 3 Actions
Trigger
Search Users
Find users with filters
Trigger
Filter Users by Email
Search users by email address
Trigger
Get User
Retrieve user details
Trigger
List Users by Location
Get users in specific location
Action
Create User
Add new user to system
Action
Update User
Modify user information
Action
Delete User
Remove user from system
💬

Conversations & Messages

8 Triggers 2 Actions
Trigger
Search Conversations
Find conversations by filters
Trigger
Get Conversation
Retrieve conversation details
Trigger
Get Email by ID
Retrieve specific email
Trigger
Get Message by ID
Get specific message details
Trigger
Get Messages by Conversation
List all conversation messages
Trigger
Get Message Recording
Retrieve voice recording
Trigger
Get Message Transcription
Get transcribed message text
Trigger
Download Transcription
Download transcription file
Action
Update Message Status
Change message read/unread status
Action
Agent Typing Indicator
Show typing indicator in chat
🏢

Businesses

2 Triggers 3 Actions
Trigger
Get Business
Retrieve business details
Trigger
List Businesses by Location
Get all businesses in location
Action
Create Business
Add new business
Action
Update Business
Modify business details
Action
Delete Business
Remove business
🔄

Workflows & Campaigns

3 Triggers 5 Actions
Trigger
List Workflows
Get all workflows
Trigger
List Snapshots
View available snapshots
Trigger
List Campaigns
Get all campaigns
Action
Add Contact to Workflow
Enroll in workflow automation
Action
Remove from Workflow
Unenroll from workflow
Action
Add Contact Followers
Assign followers to contact
Action
Remove Contact Followers
Unassign followers
Action
Bulk Business Update
Add/remove contacts from business
⚙️

Other Operations

20 Triggers 8 Actions
Trigger
List Locations
Get all locations
Trigger
List Custom Fields
View custom field definitions
Trigger
Get Company
Retrieve company information
Trigger
Find Associations
Search associations
Trigger
Get Association
Retrieve association details
Trigger
Get Association Key
Get key by name
Trigger
Get Association by Keys
Find by object keys
Trigger
Get Relations by Record
List record relations
Trigger
Check Blog URL Slug
Verify slug availability
Trigger
Get Blog Authors
List blog authors
Trigger
Get Blog Categories
List blog categories
Trigger
Get Blog Posts
List posts by blog
Trigger
Get Blogs by Location
List location blogs
Action
Find Location by ID
Retrieve location details
Action
Create Location
Add new location
Action
Create Association
Link related records
Action
Update Association
Modify association
Action
Delete Association
Remove association
Action
Create Relation
Establish record relation
Action
Delete Relation
Remove record relation
Action
Create Blog Post
Publish new blog post
Action
Update Blog Post
Edit blog post

✨ Key Capabilities

📊 Contact Management

  • 10 custom field slots per contact
  • Advanced search with filters
  • Duplicate detection
  • Tag management (bulk operations)
  • Full task and note management
  • Campaign & workflow enrollment

📅 Calendar Features

  • Calendar groups with slugs
  • Multiple calendar types
  • Free slot checking
  • Appointment booking system
  • Blocked slots management
  • Room & equipment resources

💼 Sales Pipeline

  • Multi-pipeline support
  • Stage management
  • Status tracking (won, lost, etc)
  • Monetary value tracking
  • User assignment
  • Follower management

🔄 Automation Ready

  • Workflow automation support
  • Campaign management
  • Polling triggers (1-15 min)
  • Real-time conversations
  • Bulk operations
  • Upsert capabilities
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