Service-level agreements (SLAs) are crucial contracts between customers and service providers that ensure a specific level of service performance and availability. Monitoring SLA breaches is essential to prevent customer trust erosion, business relationship fractures, and reputation tarnishing. To efficiently identify, prevent, and manage SLA breaches, it's vital to craft a data-driven SLA, implement alerts for early warning systems, have a rapid response mechanism with contingency planning, plan for redundancy and backup strategies, adopt open communication, and continuously monitor SLA performance. New Relic offers capabilities to support these strategies, including data collection and analysis, proactive detection features, runbooks, incident management, infrastructure monitoring, and service level management. By leveraging these tools and techniques, developers can adeptly manage SLA breaches with confidence.