I've trying to set up instagram business login with access to conversations.

I've tried both use the access token generated in the app dashboard, and log in with this url to get the access token.

https://www.instagram.com/oauth/authorize?enable_fb_login=0&force_authentication=1&client_id=829474565927626&redirect_uri=--url--&response_type=code&scope=instagram_business_basic%2Cinstagram_business_manage_messages%2Cinstagram_business_manage_comments%2Cinstagram_business_content_publish

both works fine for at getting profile info and media, but when I try to access https://graph.instagram.com/v21.0/me/conversations?access_token=$accessToken" it says "Unsupported get request. Object with ID 'me' does not exist, cannot be loaded due to missing permissions, or does not support this operation"

I've tried to follow every step, the app is live, is a business app.

https://developers.facebook.com/docs/instagram-platform/instagram-api-with-instagram-login/conversations-api