My Twitter app is 403’ing, and I think it has to do with the callback whitelisting. However, in all the instructions online, it appears there is some crucial step I can’t do, which is to enable “Callback Locking” on my app.
I don’t see it on apps.twitter.com, I don’t see it on my existing apps’ settings, I don’t see it in a new test app I created, and I don’t see any specific instructions or screenshots on this forum for this.
Thanks,