// 700..749: ref errors
// 750..799: application integration errors
// 900..949: application information errors
// 950..999: batch api errors
// 1000..1099: event api errors
// 1100..1199: live-message errors
// 700..749: ref errors
// 750..799: application integration errors
// 900..949: application information errors
// 950..999: batch api errors
// 1000..1099: event api errors
// 1100..1199: live-message errors