Optional
ConfidenceMatch confidence with the UserID, provides information regarding if a face association was unsuccessful because it didn't meet UserMatchThreshold.
Optional
FaceA unique identifier assigned to the face.
Optional
ReasonsThe reason why the association was unsuccessful.
Optional
UserA provided ID for the UserID. Unique within the collection.
Contains metadata like FaceId, UserID, and Reasons, for a face that was unsuccessfully associated.