How to troubleshoot Unable to send OTP to verify Whatsapp number on the sub-account

Issue:
Users are unable to receive the OTP required to verify a WhatsApp number on a sub-account.

Cause:
This issue typically occurs when the WhatsApp number is already registered with the regular WhatsApp Business app.

Solution:
To resolve this issue, follow the steps below:

1. Verify WhatsApp Registration Status:

   • Check if the phone number is already active on WhatsApp.

   • You can use the online tool at 2Chat WhatsApp Checker to verify if the number is registered.

   • Alternatively, check directly via the WhatsApp or WhatsApp Business app.

2. If the Number is Already Registered:

   • WhatsAppWhatsapp Number cannot be used for WhatsApp Business API (WABA) while it is registered with the regular WhatsApp Business app.

     • Use a different phone number to register for WABA, or

     • Deactivate the existing WhatsApp account associated with the number before attempting registration again.

Note: It may take some time for the number to be fully released after deactivation before it can be used for WABA registration.