diff --git a/src/pages/U3/u3.tsx b/src/pages/U3/u3.tsx
index 9bddb46..37df2de 100644
--- a/src/pages/U3/u3.tsx
+++ b/src/pages/U3/u3.tsx
@@ -28,6 +28,10 @@ const U3: React.FC = () => {
     getOptionalItemList(idCardNo)
       .then((res) => {
         if (res.Status === 200) {
+          localStorage.setItem(
+            "selectedExamId",
+            res.Data.packageInfo.physical_exam_id.toString() || ""
+          );
           if (
             res.Data?.packageInfo?.is_optional_package === 1 &&
             res.Data.packageInfo.registration_time.length > 0