WhatsApp Integration Sign-Up Guide
Message customers1 min readUpdated 2026-03-12
WhatsApp Integration Sign-Up Guide
The new WhatsApp sign-up flow (available since September 2024) simplifies the connection process — no manual webhook or token configuration required.
Prerequisites
- Active JustCall account (Team plan or above).
- A phone number eligible for WhatsApp Business (not already registered with WhatsApp).
- A Meta Business account.
Sign-Up Steps
- Go to Channels → WhatsApp in JustCall.
- Click Connect WhatsApp.
- Sign in with your Meta Business account when prompted.
- Select or create a WhatsApp Business Account.
- Choose the phone number to connect (from your JustCall numbers or a new number).
- Complete the verification (text message or voice call).
- Click Finish Setup.
JustCall handles webhook configuration and token management automatically.
After Setup
- WhatsApp conversations appear alongside your SMS inbox.
- Use WhatsApp template messages for outbound-initiated conversations (24-hour rule applies).
- Customer-initiated conversations allow free-form messaging for 24 hours after their last message.
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