If the number you want to connect is currently registered in the WhatsApp mobile app or the WhatsApp Business app, the API integration will not complete. Meta does not allow the same number to be active in both systems.
Which connection method to use
- Coexistence โ scan a QR code and keep the WhatsApp Business app. Official and completely legal, but it inherits the app's limits: sending can be blocked when you message many customers, campaigns are restricted, and disconnections are more frequent.
- Recommended โ a dedicated number with no WhatsApp app. Connect a number that is not installed in any WhatsApp app, and handle every conversation from eGrow Web and the eGrow mobile app. This is the stable option for automations, campaigns and volume.
Your options with a number already on the app
- Use a different number for the API โ the simplest path.
- Delete the WhatsApp account on that number first (in the app: Settings โ Account โ Delete my account), then register it on the API. This erases the app's chat history for that number.
- Use coexistence if you must keep the app on that number, accepting its limits.
Good to know: Deleting the WhatsApp account on a number is permanent for that app history. Export anything you need first.