Can anyone guide me how to set up Whatsapp integration? How to implement the bot on a real Whatsapp Business number instead of a test number? (I have already achieved that through the test Whatsapp number provided by Meta). Is the Whatsapp Business API necessary to do this?

Hey there, You can read all about the WhatsApp integration, including how to set it up with a real WhatsApp business number, right here https://botpress.com/docs/cloud/channels/whatsapp/#prerequisites I am not sure about the Business API, but I would advise you to visit its docs or the official Meta for Developers website for up-to-date information on the verification process and API access.