Why I can’t register my phone number for the WhatsApp Business API?
Admin Changed status to publish April 22, 2022
There are many reasons that might lead to this:
1- You are using the number with another WhatsApp or WhatsApp Business account
2-You have deleted the WhatsApp or WhatsApp Business Application but didn’t delete your account
3-You have exceeded the number of registration attempts and Facebook has imposed a registration timeout
4-Your phone number is from one of the blocked countries:
•Crimea (+7978)
•Cuba (+53)
•Iran (+98)
•North Korea (+850)
•Syria (+963)
Admin Changed status to publish April 21, 2022