The Rankedin ID is a unique number with one letter and nine numbers (R000007529). This unique number is made when the players create their accounts, it is one per player and can not be changed. With the Rankedin ID, it is much easier to search or add players in the events. Using the player’s ID’s guarantee that you are adding the correct person to your Event.
The Rankedin ID is located in the Players profiles next to their name.