How does action override work in Salesforce Lightning?
In Lightning Experience, the standard Tab and View actions display as a page, while the standard New and Edit actions display in an overlaid panel. When used as action overrides, Lightning components that implement the lightning:actionOverride interface replace the standard behavior completely.
How to override standard action with lightning web component?
You need to call your component in Aura Component and use that aura component to override the action. Aura interfaces that are not listed don’t currently have an equivalent in Lightning Web Components. You can read here how to use Lightning Web Component in aura component :- Compose Aura Components from Lightning Web Components
How to override standard actions in Lightning aura?
Add the lightning:actionOverride interface to an Aura component to enable the component to be used to override a standard action on an object. You can override the View, New, Edit, and Tab standard actions on most standard and all custom components.
Can you use lightning component instead of Visualforce page?
Choose a Lightning component instead of a Visualforce page in the Override Properties for an action. However, there are important differences from Visualforce in how you create Lightning components that can be used as action overrides, and significant differences in how Salesforce uses them.
How to override standard actions in lightning experience?
There are six standard actions available on most standard and all custom objects: Tab, List, View, Edit, New, and Delete. In Salesforce Classic, these are all distinct actions. You can override a standard action with an Aura component in both Lightning Experience and mobile.
What is a marker interface in Salesforce Lightning?
A marker interface is a signal to the component’s container to add the interface’s behavior to the component. You don’t need to implement any specific methods or attributes in your component, you simply add the interface name to the component’s implements attribute.