We have identified an issue with alerts when two or more external accounts use the same Azure Client ID and App Registration. Doing so will cause all external accounts with the shared ID and Registration to receive alerts from the one of the subscriptions, but none from the others. We are actively working to identify the root cause and implement a fix. For an immediate workaround, please configure the external accounts with different Client IDs.
Posted about 1 month ago. Dec 07, 2017 - 11:21 PST