Automatic Escalation: When an incident is automatically assigned to you according to an escalation rule (with multiple levels), and you haven't resolved it within the specified time window, haven't chosen to Snooze it, and the incident hasn't auto-resolved, it will automatically escalate to the next level at the specified time.
Manual Escalation: When an incident is automatically assigned to you according to an escalation rule (with multiple levels), but upon receiving the alert, you determine that you cannot handle it and need the next level (such as second-line technical support) to intervene earlier, you can choose to directly escalate the incident to another level.