Use the incident timeline

The Timeline lets you keep track of everything that happened during the incident, recording incident activity in real-time and noting who made the change — when the incident was initiated, when resolvers were added and any comments they made, if resolvers were notified or stopped being notified, and changes to incident details such as summary and description, status and severity. The timeline is a powerful information source both while the incident is active and after it's been resolved because it can include rationale and details for any changes made during the resolution process.