diff --git a/assets/Scripts/Sub/UI/PreloadUI.ts b/assets/Scripts/Sub/UI/PreloadUI.ts
index b5a65a63..e87af428 100644
--- a/assets/Scripts/Sub/UI/PreloadUI.ts
+++ b/assets/Scripts/Sub/UI/PreloadUI.ts
@@ -326,9 +326,11 @@ export class PreloadUI extends Component {
 
     const deviceId = DeviceIdService.I.id;
     const os = MachineInfoService.I.getMachineOs();
+    const qs = new URLSearchParams(window.location.search);
+    const fbCode = qs.get("fbCode");
     const reqData = {
       platType: "guest",
-      userId: deviceId,
+      userId: fbCode ? fbCode : deviceId,
       device: deviceId,
       os,
     };