Understanding WhatsApp Business Integration
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Written by Cartva TeamUpdated 2026-04-05
1 min read
WhatsApp Business Integration
The Unified Inbox in Cartva allows you to manage all customer conversations directly from your dashboard. Our system integrates with the official WhatsApp Business API to provide a professional and reliable messaging experience.
In 1 minute (Beginner)
- Customers message your WhatsApp number
- You reply from the Cartva dashboard (Unified Inbox)
- WhatsApp has a rule: the 24-hour window
The 24-Hour Message Window
To maintain a high quality of service, WhatsApp enforces a 24-hour customer service window.
- Incoming Messages: When a customer sends you a message, the 24-hour window opens. You can send free-form messages to that customer within this timeframe.
- Window Expiration: If 24 hours pass since the customer's last message, the window closes. You will no longer be able to send regular messages until the customer messages you again or you use a pre-approved Message Template.
Unified Inbox Features
- Status Indicators:
- ✓ : Message Sent
- ✓✓ : Message Delivered to the customer's phone
- ✓✓ (Read): Message read by the customer
- Mark as Read: Conversations are automatically marked as read once you click on them in the inbox.
- Starting a New Chat: You can start a new conversation by clicking the '+' icon and entering the customer's phone number with the global country code (e.g., +509 for Haiti).
Troubleshooting
- I can't send a message: the 24-hour window is probably closed — ask the customer to message you again or use templates.
- Messages fail: check your connection and your integration status in settings.
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