I have implemented the instagram messaging in my app. Using the below method:
https://developers.facebook.com/docs/messenger-platform/instagram
I have given the permissions which are mentioned in the documentation.The permissions are:
pages_manage_metadata, instagram_basic, instagram_manage_messages
I have requested the advanced access to the permission and got rejected saying the use case is invalid for the instagram_basic permission
Can anybody say the purpose of the instagram_basic permission along with these permissions for using the send message API for Instagram.