3.1. Go to your main apps page on Facebook: https://developers.facebook.com/apps/
3.2. Select your app.
3.3. Scroll down to the Add a Product section and choose Facebook Login.
3.4. On the first page of the Quickstart, choose Web.
3.5. In the Site URL field, enter the Okta "Redirect URI" that you copied in step 2.5.
3.6. Click Save, then click Continue.
3.7. On the left-hand side, find Facebook Login and click Settings.
3.8. Under your app's Client OAuth Settings, find the Valid OAuth Redirect URIs section and paste your app's Redirect URI (from step 2.5) into this field.Next: