DHL Express Switzerland has significantly enhanced its IT and business flows by implementing a Grafana-centric observability solution, as detailed in a GrafanaCON 2023 presentation by Head of IT Djamel Djedid and Lead Architect Michael Lerch. The initiative began in 2020 with a proof of concept using Grafana and Prometheus to address the limitations of their legacy monitoring system, enabling the team to proactively resolve issues and reduce manpower needs. By 2021, they expanded the implementation with Grafana Alerting and integrated it with Microsoft Teams, making observability a default attribute of new applications, which improved customer satisfaction during a business surge. In 2022, they used Grafana k6 for performance testing to ensure a smooth transition from on-premises data centers to the public cloud, confirming the cloud's stability for more users. By 2023, the observability stack included 80 alerts, 40 dashboards, and 60 active users, with plans to further integrate Grafana OnCall and Grafana Loki, providing a comprehensive and efficient system status overview.