diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.10.1/changelogs-account_os_account.md b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.10.1/changelogs-account_os_account.md
index 157e9a3ea148d641963092a80a926a5786801f3b..d863b4f9660e6338b3f23d6d49895be57e8b13f6 100644
--- a/zh-cn/release-notes/changelogs/OpenHarmony_4.0.10.1/changelogs-account_os_account.md
+++ b/zh-cn/release-notes/changelogs/OpenHarmony_4.0.10.1/changelogs-account_os_account.md
@@ -53,4 +53,46 @@ interface/sdk-js/api/@ohos.account.appAccount.AuthorizationExtensionAbility.d.ts
 
 **适配指导**
 
-该接口删除后无法再使用，请同步删除相应功能。
\ No newline at end of file
+该接口删除后无法再使用，请同步删除相应功能。
+
+
+## cl.account_os_account.2 系统帐号添加凭据接口错误码变更
+
+**变更影响**
+
+基于此前版本开发的应用，需要重新适配旧错误码场景的分支判断。
+
+**关键接口/组件变更**
+
+涉及接口：
+
+```js
+  class UserIdentityManager {
+    ...
+    addCredential(credentialInfo: CredentialInfo, callback: IIdmCallback): void;
+    ...
+  }
+```
+
+错误码列表：
+| 错误码ID | 错误信息                     |
+| -------- | ------------------- |
+| 12300001 | System service exception. |
+| 12300002 | Invalid credentialInfo, i.e. authType or authSubType. |
+| 12300101 | Token is invalid. |
+| 12300106 | Unsupported authType. |
+| 12300109 | Operation is canceled. |
+| 12300111 | Operation timeout. |
+| 12300115 | The number of credentials reaches the upper limit. |
+
+
+变更前：
+会话超时异常场景对应的错误码返回为12300002
+
+变更后：
+会话超时异常场景对应的错误码返回为12300001
+
+
+**适配指导**
+
+根据错误码变更场景进行排查适配。