A notification subscription application allows a subscriber to maintain event notification continuity in a load-balanced work environment. The notification subscription application proactively provides the subscriber notifications indicating an operating status of the subscription. In this manner, subscribers can reduce the number of missed event notifications, by readily reestablishing a subscription when required. The notification service associates markers with events such that event notifications occurring during a period of time when the notification subscription is not operating properly can be identified when the subscription is reestablished.