diff --git a/discount/init.py b/discount/init.py
index e069fe3..011f0c1 100644
--- a/discount/init.py
+++ b/discount/init.py
@@ -555,7 +555,7 @@ async def generate_promo_qr(request, params_kw):
             return {'widgettype': 'Message', 'options': {'title': 'Error', 'message': f'Promo code {promo_id} not found', 'type': 'error'}}
     
     config = getConfig()
-    qr_url = env.entire_url('./promote') + f'?code={promo_id}'
+    qr_url = env.entire_url('./promote.dspy') + f'?code={promo_id}'
     fs = FileStorage()
     p = fs._name2path(f'{_getID()}.png')
     gen_qr_withlogo(qr_url, p, logopath=config.logopath, logoloc='cc')
diff --git a/wwwroot/promote.dspy b/wwwroot/promote.dspy
index bea3c36..911928d 100644
--- a/wwwroot/promote.dspy
+++ b/wwwroot/promote.dspy
@@ -1 +1,18 @@
-return {"widgettype": "Form", "options": {"url": "/discount/generate_qr.dspy", "fields": [{"name": "discount", "uitype": "float", "label": "折扣"}]}}
+# Customer promote page - scan QR code to claim discount
+code = params_kw.get('code', '')
+
+result = {
+    "widgettype": "Form",
+    "options": {
+        "width": "100%",
+        "height": "100%",
+        "url": "/discount/generate_qr.dspy?code=" + code,
+        "method": "POST",
+        "fields": [
+            {"name": "valid_term", "label": "有效期", "uitype": "str", "tip": "格式：xY, xM, xD"},
+            {"name": "expired_date", "label": "促销失效日期", "uitype": "date", "tip": "需在此日期前使用"},
+            {"name": "discount", "label": "折扣", "uitype": "float", "tip": "0<折扣<1"}
+        ]
+    },
+    "binds": [{"wid": "self", "event": "submited", "actiontype": "script", "target": "self", "script": "await bricks.show_resp_message_or_error(event.params)"}]
+}