diff --git a/backend/app.js b/backend/app.js
index c6f8b28..65892e3 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -232,19 +232,22 @@ async function sendLineMessage(userId, message) {
 const channelID = '2006462420'; 
 const channelSecret = '8c832c018d09a8be1738b32a3be1ee0a'; 
 
+// 生成唯一 ID 的函數
+const generateUniqueId = (prefix) => `${prefix}_${Date.now()}_${Math.floor(Math.random() * 1000)}`;
+
 // 創建支付的 API
 app.post('/api/create-payment', async (req, res) => {
     const paymentData = {
         amount: 1000,
         currency: 'TWD',
-        orderId: `o_${Date.now()}`, // 生成唯一的訂單 ID
+        orderId: generateUniqueId('order'), // 生成唯一的訂單 ID
         packages: [
             {
-                id: `p_${Date.now()}`, // 生成唯一的套餐 ID
+                id: generateUniqueId('package'), // 生成唯一的套餐 ID
                 amount: 1000,
                 products: [
                     {
-                        id: `pr_${Date.now()}`, // 生成唯一的商品 ID
+                        id: generateUniqueId('product'), // 生成唯一的商品 ID
                         name: '商品名稱',
                         quantity: 1,
                         price: 1000,
@@ -263,6 +266,7 @@ app.post('/api/create-payment', async (req, res) => {
             },
         });
 
+        console.log('API Response:', response.data);
         if (response.data && response.data.info && response.data.info.paymentUrl) {
             res.json({ returnUrl: response.data.info.paymentUrl.web });
         } else {
@@ -279,3 +283,4 @@ app.post('/api/create-payment', async (req, res) => {
         });
     }
 });
+