I'm trying to add "login with facebook" feature to my website. I made the app setup in "meta for developers" but I can't find where to add "OAuth redirect URL". All the old tutorials was made before the update of the website and they say go to "add product section" but I don't had a product section in the left side bar. I spent a lot of time to search for it but ... :(
here is a screenshot the app page:
Had the exact same problem from following outdated tutorials just like you.
Select your application from the dropdown.
Under build your app, click "use cases".
Where it says "Authentication and Account Creation", click "Customize".
Click "Go to Settings".
There will be a "Valid OAuth Redirect URIs" field (Until things change again), which I believe is what you are after.
I hope this helps.