We are trying to use the displayName property on Playfab to store our player's handle. We noticed a weird behavior, and also a question:
1) I was under the impression that the system would allow for duplicate displayNames. But I noticed that when we call PlayFab.AdminModels.UpdateUserTitleDisplayNameRequest() to set an account's displayName to the same as another, we get back a failure with the message "Invalid input parameters". Can you confirm if this is the correct behavior?
2) If the system does restrict displayNames to be unique, how do we check to see if a particular display name is already in use?
3) Does Playfab provide anything that can help us check the displayname that players choose to make sure the choices are appropriate?
thx!