The FME Server Notification Service allows messages to be sent and received by FME Server when events occur. One good use for this service is to send an email to an admin when a scheduled workspace fails. There are many other uses for the Notification Service.
The Notification Service uses the Publish-Subscribe design pattern. This demo explains the concept of Publish-Subscribe and gives a few examples of how we use the Notification Service at City of Vancouver. Presented by Jim O'Leary, GIS department of the City of Vancouver.
City of Vancouver
FME World Tour 2016