Wire PagerDuty alert grouping (Intelligent, Content-Based, and Unified) to reduce incident noise

Steps

1. Navigate to Services > Service Details > Alert Grouping (or configure via the Services API with alert_grouping_parameters in the service payload)
2. Choose Time-Based grouping to collapse all alerts on the service into the open incident for a fixed window (1–60 minutes); set time_window to desired seconds in the API payload
3. Choose Content-Based grouping to group only alerts where selected fields match exactly; specify fields as a list of dot-path strings in the fields array of alert_grouping_parameters
4. Choose Intelligent Alert Grouping (machine-learning based) by setting type to intelligent; optionally set time_window for the ML correlation window
5. Enable Unified Alert Grouping (combines Content-Based and Intelligent) by setting type to unified with both content fields and an intelligent time window — alerts group only when both conditions are met
6. Validate grouping behavior using PagerDuty's 'Preview Intelligent Alert Grouping' feature on the service page before enabling in production