diff --git a/components/lib/splitbutton/SplitButton.js b/components/lib/splitbutton/SplitButton.js
index 108141413a..70f046e449 100644
--- a/components/lib/splitbutton/SplitButton.js
+++ b/components/lib/splitbutton/SplitButton.js
@@ -16,7 +16,7 @@ export const SplitButton = React.memo(
         const context = React.useContext(PrimeReactContext);
         const props = SplitButtonBase.getProps(inProps, context);
 
-        const [idState, setIdState] = React.useState(props.id);
+        const [idState, setIdState] = React.useState(props.id ?? UniqueComponentId);
         const [overlayVisibleState, setOverlayVisibleState] = React.useState(false);
         const elementRef = React.useRef(null);
         const menuRef = React.useRef(null);
diff --git a/components/lib/tieredmenu/TieredMenuSub.js b/components/lib/tieredmenu/TieredMenuSub.js
index 1a443e17b9..15a99736f7 100644
--- a/components/lib/tieredmenu/TieredMenuSub.js
+++ b/components/lib/tieredmenu/TieredMenuSub.js
@@ -65,6 +65,10 @@ export const TieredMenuSub = React.memo(
         };
 
         const getItemId = (processedItem) => {
+            if (processedItem.item && processedItem.item.id) {
+                return processedItem.item.id;
+            }
+
             return `${props.menuId}_${processedItem.key}`;
         };