Alert Rules and related Notification Hooks (aka Integrations) sharing option was updated. Now each Alert Rule and each Notification Hook is tied to account under which it was created. This way any member of your team will still see all Alert Rules created under the common shared account. Each team member will be able to use and create new Alert Rules and Notification Hooks, which will also be visible to other members of the team (but editable only by the shared account owner, or users with admin role). Such Alert Rules and Hooks will not be visible to App guests though, so your team’s work in the common shared account will not be affected by them.
For more details on this new sharing option and its benefits over plain App sharing check out our blog post or see it for yourself.