1. Go to Facebook Login for Android – Quickstart and create a Facebok App. Follow this official guide to create a new Facebook app
1. Update to your Website Admin
Copy you app ID and App Secret key from your created Facebook and and insert it in App Builder and save it.
I should look like below screenshot as Facebook App Id and Secret are updated
3. Update on App
4. Update SHA-1 Key from Play Store Console to your Facebook App.
- Get SHA1 from Google play public
- Use this site convert to HASH
- Update HASH to Facebook App.