Resolved
This incident is now resolved. The impact start time was 2024-04-01 16:11 PM UTC, and the end time was 2024-04-02 18:43 UTC.
Retroactive
We identified an issue with Heroku Dashboard affecting viewing notifications and configuring Threshold Alerting between 2024-04-01 16:11 PM UTC and 2024-04-02 18:43 UTC. Impacted users were unable to view their notifications or configure threshold alerts via the metrics page.