Answers

The most common reason why a number gets banned from the WhatsApp API is - the Business has not completely filled their Business Info section in Meta Business Manager.

There is no auto-reply functionality in the native WhatsApp Business API. As such, you will need to code the auto-reply functionality yourself using the endpoints we provide you OR you can acquire the...

You can apply for an OBA in your Profile section of WhatsApp Manager: Phone numbers > Settings > Profile.

The default limit is 25 (provided you have a Verified Business).