PlayFabClientAPI.LoginWithFacebook(new LoginWithFacebookRequest { TitleId = PlayFabSettings.TitleId, CreateAccount = true, AccessToken = currToken, InfoRequestParameters = InfoRequestParams }, OnPlayfabTAuthComplete, OnPlayfabTAuthFailed); Does it a good pratise to always set CreateAccount to true when player click login with Facebook? what happens if they already created an account before? does PlayFab creates new account for them? or does PlayFab knows that and does not create account for them?