As I understand both session tickets and facebook tokens does expire after a while so I got two questions to this.
Facebook: Do i need to fetch a facebook token everytime I start the app? What happens when it expires? Do I need to link the newly refreshed one to the account ?
Playfab: What happens when users don't close their app and let them run more than 24 hours. Do I need to connect once again using eg. LoginWithAndroidDeviceID as soon as I get an auth error?