In "Project Alerts" we can only see certain details about "Closed Alerts," e. g. for an "Index Suggestion" we can only see the timestamp and the fact, that there was an index suggestion. You can't see what the specific suggestion was. So if you look through the history of alerts, you cannot tell if for multiple alerts it was always about the same index to be created, or whether it was for different indexes.

Likewise, for "Daily amount billed ($) is above threshold" you can see that the threshold was exceeded, but you can't see what the specific billed amount was.