diff --git a/src/Explorer/Controls/Settings/SettingsComponent.tsx b/src/Explorer/Controls/Settings/SettingsComponent.tsx
index 704bebb24..d9cd09f7e 100644
--- a/src/Explorer/Controls/Settings/SettingsComponent.tsx
+++ b/src/Explorer/Controls/Settings/SettingsComponent.tsx
@@ -801,7 +801,12 @@ export class SettingsComponent extends React.Component<SettingsComponentProps, S
   private onMaxAutoPilotThroughputChange = (newThroughput: number): void =>
     this.setState({ autoPilotThroughput: newThroughput });
 
-  private onThroughputChange = (newThroughput: number): void => this.setState({ throughput: newThroughput });
+  private onThroughputChange = (newThroughput: number): void => {
+    if(newThroughput < 400) {
+      return alert("The value should not small than 400");
+    } 
+    this.setState({ throughput: newThroughput });
+  }
 
   private onAutoPilotSelected = (isAutoPilotSelected: boolean): void =>
     this.setState({ isAutoPilotSelected: isAutoPilotSelected });
diff --git a/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoPilotV3.ts b/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoPilotV3.ts
index 8c87897ef..baff1636b 100644
--- a/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoPilotV3.ts
+++ b/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoPilotV3.ts
@@ -267,8 +267,10 @@ export class ThroughputInputViewModel extends WaitsForTemplateViewModel {
     return true;
   };
 
-  public onThroughputChange = (source: any) => {
-    window.alert("onThroughputChange");
+  public onThroughputCheck = (event: any) => {
+    if(event.value() < 400) {
+      window.alert("The value should not small than 400");
+    }
   };
 
   private _getSanitizedValue(): number {
diff --git a/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoscaleV3.html b/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoscaleV3.html
index 14bcff7b2..725b2a905 100644
--- a/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoscaleV3.html
+++ b/src/Explorer/Controls/ThroughputInput/ThroughputInputComponentAutoscaleV3.html
@@ -152,7 +152,7 @@
                 required: isManualThroughputInputFieldRequired()
             },
             event:{ 
-              change: onThroughputChange
+              change: onThroughputCheck
             }"
       />
     </div>