diff --git a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayPayResultNotify.java b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayPayResultNotify.java
index 895d1ed..79103c6 100644
--- a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayPayResultNotify.java
+++ b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayPayResultNotify.java
@@ -60,6 +60,6 @@ public class AlipayPayResultNotify extends AlipayNotify {
   private Quote paymentQuote;
   private Amount processingAmount;
 
-    /** 用于商户自定义元数据信息，支持JSON格式 */
-    private String metadata;
+  /** 用于商户自定义元数据信息，支持JSON格式 */
+  private String metadata;
 }
diff --git a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayRefundNotify.java b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayRefundNotify.java
index 2e3f228..130f1a5 100644
--- a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayRefundNotify.java
+++ b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayRefundNotify.java
@@ -43,6 +43,6 @@ public class AlipayRefundNotify extends AlipayNotify {
 
   private Amount actualRefundAmount;
 
-    /** 用于商户自定义元数据信息，支持JSON格式 */
-    private String metadata;
+  /** 用于商户自定义元数据信息，支持JSON格式 */
+  private String metadata;
 }
diff --git a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayVaultingNotify.java b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayVaultingNotify.java
index 807be6b..ca18f44 100644
--- a/src/main/java/com/alipay/global/api/request/ams/notify/AlipayVaultingNotify.java
+++ b/src/main/java/com/alipay/global/api/request/ams/notify/AlipayVaultingNotify.java
@@ -22,6 +22,6 @@ public class AlipayVaultingNotify extends AlipayNotify {
 
   private CustomizedInfo customizedInfo;
 
-    /** 用于商户自定义元数据信息，支持JSON格式 */
-    private String metadata;
+  /** 用于商户自定义元数据信息，支持JSON格式 */
+  private String metadata;
 }