This is as simple as going to PlayFab's official website and logging in. You will be welcomed with a demo game already created(or else you may create a new game/title)
Step 2: Change Project ID on the Project
Now on the dashboard itself, you will have option to check the ID for the game like below and you can copy the ID and paste in the Game Title ID in the project.
The Game Title ID can be found in the project's Game Instance.
Step 3: Setup Currency
Go to your game dashboard, then Economy and lastly Currency. Press on New Currency and name the shortcode to be UC(to keep uniformity over the project).
Step 4: Setup Leaderboard
Go to your game dashboard, then Leaderboards, and press New Leaderboard. Name your leaderboard depending upon your usage.
Now copy the name and setup in the Blueprint project
Done: Testing Time
Now you may start testing the project majorly but few topic's like Dedicated Server's or different authentication method or maybe adding item's to shop