With the integration of PagerDuty with MongoDB Management Service, you can now send MMS alerts to the right on-call engineer at the right time, ensuring that no one is left out and minimizing downtime. The new feature allows for multiple on-call schedules to be set up in PagerDuty, enabling team members to rotate through the alerts and giving everyone a chance to take time off. This integration also provides automated escalations, ensuring that alerts are never missed and performance issues are quickly identified and addressed.