I’m trying to validate a number for use in the WhatsApp Business API. I received a notification from Facebook stating that the number was already being used as a business number. I deleted my account a few hours ago, but nothing has changed. Now, when I try to validate the number, I encounter the following error: "Got unexpected null or undefined." What should I do?
Thank you.
Solved: https://developers.facebook.com/community/threads/976173734058460/