Create a new Item in the Primary catalog, set "01" as ItemId, "Soldier" as DisplayName, pick "Is a token for character creation".
But still have "Item Not Owned" error in the next method:
public void BuyCharacter() { var request = new GrantCharacterToUserRequest(); request.CatalogVersion = "Economy"; request.CharacterName = "Soldier"; request.ItemId = "01"; PlayFabClientAPI.GrantCharacterToUser(request, OnBuyCharacter, OnPlayFabError); }