Change the ID to player name?
If the player has a display name, the display name should be under the ID, please check if the player has a display name.
I can see the player name on "Overview page" Master Player account --> PlayFab Login --> PlayFab username. I want to see it instead of those random numbers. How to do this with a script?
The table format in the player search page is fixed, it won’t show a player’s username. If you want the feature that allows you to customize the table, you can post a Feature Request for that.
