Im using messenger it's simple just follow steps on YouTube. 1-create a meta developer account (developer.meta.com) 2- connect your fb page inside developer account 3- get app id, access token, verify token, messenger is 4- go to bot press and add info In integration. 5- for Instagram you have to make developer account for business then you have to verify ur business account by uploading company details. Once done u can receive messges 6-for whstapp u need a number and a business account + u need to provide public link and info on the type of business (comply with privacy) 7- for messenger u need to create a privacy policy and add link in developer account