Application performance management (APM) is a solution that monitors and optimizes the performance of applications across a wide area network. As organizations expand globally, APM becomes important for ensuring remote employees can securely and efficiently access critical applications. APM measures application performance at the server, network, application, and end-user levels to identify issues and improve response times. Implementing best practices of APM such as understanding usage, continuous monitoring, and linking performance to business needs helps optimize the network and enhance the user experience.