Final answer:
A programmatic solution for overriding standard actions in Salesforce's Lightning Experience involves creating custom Lightning components that implement specific Salesforce interfaces to replace the default functionality.
Step-by-step explanation:
The question "What is a programmatic solution for overriding standard actions in Lightning Experience?" relates to customizing Salesforce CRM functionality, particularly within the Lightning Experience interface. To override a standard action such as View, Edit, Create, etc., in Lightning Experience, developers can create Lightning components that implement the force:hasRecordId interface and lightning:actionOverride interface. Then, the custom component can be assigned as an action override in the object's Buttons, Links, and Actions setup menu.
To ensure that the custom Lightning component provides the necessary functionality, developers must adequately handle the record data and operations that would normally be managed by the standard Salesforce interface. This may involve fetching record details, presenting forms for editing data, and using Salesforce's Apex classes to interact with the database for saving records.