Notification API delivery Status

There is a requirement that let’s say if a user is doing a sign up process on a website and an OTP needs to be triggered to their whatsapp number. This can be done via Notification APi.

However let’s say that if the message didn’t get delivered since the number provided by the user is not a whatsapp number so can that feedback or delivery status go back to the customer’s backend system that the given whatsapp number is invalid?