Dependent Picklist

In plain words: A dependent picklist in Salesforce is a pair of dropdown menus where the choices available in the second (child/dependent) dropdown automatically change based on the choice you select in the first (parent/controlling) dropdown. Rather than writing complex, custom Apex schema classes or hardcoding options, Lightning Web Components (LWC) provide built-in wire adapters through lightning/uiObjectInfoApi . These adapters ( getObjectInfo and getPicklistValues ) handle the entire controlling-dependent mapping, caching, and record-type filtering automatically.