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New alert: An alert is created for which you're a recipient. Any contact method you add automatically reflects in this rule type by default.
Acknowledged alert: Another member on the team has acknowledged an alert.
Closed alert: Another member on the team has closed an alert.
Assigned alert: You were assigned as the owner of an alert by another member.
Note added: Another member added a note to an alert.
Schedule start: Your on-call rotation is about to start.
Schedule end: Your on-call rotation is about to end.
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