diff --git a/src/App.vue b/src/App.vue
index a434787..ba6bd17 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -9,6 +9,12 @@ const email = ref('')
 
 async function genPrivateKey() {
   try {
+    if (!merchantId.value) {
+      return message('Please enter your merchant id', 'PHIZ - Tips')
+    }
+    if (!email.value) {
+      return message('Please enter your email', 'PHIZ - Tips')
+    }
     const savePath = await open({
       title: 'Select a directory to save',
       defaultPath: await downloadDir(),
@@ -16,12 +22,12 @@ async function genPrivateKey() {
       recursive: true
     })
     if (!savePath) {
-      return message('Please select a directory to save')
+      return message('Please select a directory to save', 'PHIZ - Tips')
     }
     await invoke('gen_rsa_pair', { merchantId: merchantId.value, email: email.value, savePath })
-    message('Successfully generated', 'Success')
+    message('Successfully generated', 'PHIZ - Success')
   } catch {
-    message('Generation failed', 'Error')
+    message('Generation failed', 'PHIZ - Error')
   }
 }
 </script>