Different instructions than on Fitbit HA documentation

According to the integration pop-up:

It says to set the Callback URL as what’s provided. There’s nothing called that on the dev page now, just Redirect URL. I got errors asking me for:

" Description is required
Organization is required
Organization Url is required
Privacy Policy Url is required
Terms Of Service Url is required
Url is required"

I have no idea what to put down for these. Any thoughts?