Aura Events

In plain words: When upgrading an older Salesforce application, you often need modern Lightning Web Components (LWC) to talk to legacy Aura components . Because they use different architectural frameworks, Salesforce allows LWC to dispatch standard custom events that parent Aura components can listen to, enabling seamless interoperability. As organizations transition their Salesforce user interfaces from legacy Aura components to modern Lightning Web Components (LWC), hybrid applications are common. Ensuring smooth communication between these two architectures is essential. While LWC components cannot directly listen to Aura component events, Aura components can easily wrap and listen to standard DOM events dispatched by LWC child components.