This field shall indicate the user ID. The value of the UserID field shall be between 0 and the value of the NumberOfPINUsersSupported attribute.
UserStatus value of Available is not allowed. In order to clear a user id, the ClearUser Command shall be used. For user status value please refer to UserStatusEnum.
Input to the DoorLock setUserStatus command
See
MatterSpecification.v13.Cluster § 5.2.10.11