We want to use the endpoint that allow to update
Currently we are getting
Twitter API returned a 403 (Forbidden), Client is not permitted to perform this action. Searching in this forum I ended up with this link: API Updates for Direct Messages Rules which points that only whitelist apps are allowed to use that endpoint.
But in the current form on this link https://help.twitter.com/forms/platform I don’t see anything regarding to whitelist. How can I initiate the process of my app getting whitelisted?