The Notifier app and the IIH Essentials app must be installed on the same Industrial Edge Device (IE Device).
Notifier app and IIH Essentials
You cannot start the Notifier app if IIH Essentials has not been installed and configured beforehand.
You can install and configure IIH Essentials after you have installed Notifier. In this case, install the IIH Essentials app and then close all running instances of the Notifier app and restart Notifier on the IE Device.