After sending a Template message, whatsapp will give a mesage_status: accepted response, but message wont be delivered. It was working right until 29/06
Samething happening here, what I have noticed is that in my case when I verify the phone numbers using the API I'm getting this:
"code_verification_status": "EXPIRED"
Not sure if that is similar to your case. This is the API link:
https://graph.facebook.com/v19.0/<YOUR_PHONE_NUMBER_IDENTIFIER>/phone_numbers?access_token=<YOUR_API_KEY>
Sorry for the late reply. We also had our code_verification_status set to EXPIRED, but our service would keep working as regular. Our problem was because of payments being rejected.
Did you manage to solve it? I have customers reporting the same problem