Receiving alerts in real-time is the difference between a problem fixed as soon as it occurs or when a user reports it, after they have had a poor user experience.
You can be notified in real-time when something goes wrong and take immediate action. For example, a real-time alert can be set up to notify you when a specific error code occurs, or when you application crashes.
Real-time alerts are usually delivered through email, Slack, Microsoft Teams or SMS. It is possible to connect your observability platform to an incident management solution such as PagerDuty to route real-time alerts to the appropriate developers or teams.