diff --git a/api/@ohos.data.distributedDataObject.d.ts b/api/@ohos.data.distributedDataObject.d.ts
index a819afd18e444dbc4232b65cba4ca2671b8b4836..ceabe36b51fc8457c2012b33a15b8be04e3c5be5 100644
--- a/api/@ohos.data.distributedDataObject.d.ts
+++ b/api/@ohos.data.distributedDataObject.d.ts
@@ -291,7 +291,8 @@ declare namespace distributedDataObject {
      * @param {AsyncCallback<void>} callback - The callback of setSessionId.
      * @throws {BusinessError} 201 - Permission verification failed.
      * @throws {BusinessError} 401 - Parameter error. Incorrect parameter types.
-     * @throws {BusinessError} 15400001 - Failed to create the in-memory database.
+     * @throws {BusinessError} 15400001 - Failed to create the in-memory database. The possible reason is that
+     * other distributed data object has already set the same sessionId.
      * @syscap SystemCapability.DistributedDataManager.DataObject.DistributedObject
      * @since 9
      */
@@ -304,7 +305,8 @@ declare namespace distributedDataObject {
      * @throws {BusinessError} 201 - Permission verification failed.
      * @throws {BusinessError} 401 - Parameter error. Possible causes: 1. Incorrect parameter types;
      *     2. The sessionId allows only letters, digits, and underscores(_), and cannot exceed 128 in length.
-     * @throws {BusinessError} 15400001 - Failed to create the in-memory database.
+     * @throws {BusinessError} 15400001 - Failed to create the in-memory database. The possible reason is that
+     * other distributed data object has already set the same sessionId.
      * @syscap SystemCapability.DistributedDataManager.DataObject.DistributedObject
      * @since 12
      */
@@ -317,7 +319,8 @@ declare namespace distributedDataObject {
      * @param {AsyncCallback<void>} callback - The callback of setSessionId.
      * @throws {BusinessError} 201 - Permission verification failed.
      * @throws {BusinessError} 401 - Parameter error. Incorrect parameter types.
-     * @throws {BusinessError} 15400001 - Failed to create the in-memory database.
+     * @throws {BusinessError} 15400001 - Failed to create the in-memory database. The possible reason is that
+     * other distributed data object has already set the same sessionId.
      * @syscap SystemCapability.DistributedDataManager.DataObject.DistributedObject
      * @since 9
      */
@@ -340,7 +343,8 @@ declare namespace distributedDataObject {
      * @returns {Promise<void>} - The promise returned by the function.
      * @throws {BusinessError} 201 - Permission verification failed.
      * @throws {BusinessError} 401 - Parameter error. Incorrect parameter types.
-     * @throws {BusinessError} 15400001 - Failed to create the in-memory database.
+     * @throws {BusinessError} 15400001 - Failed to create the in-memory database. The possible reason is that
+     * other distributed data object has already set the same sessionId.
      * @syscap SystemCapability.DistributedDataManager.DataObject.DistributedObject
      * @since 9
      */
@@ -353,7 +357,8 @@ declare namespace distributedDataObject {
      * @throws {BusinessError} 201 - Permission verification failed.
      * @throws {BusinessError} 401 - Parameter error. Possible causes: 1. Incorrect parameter types;
      *     2. The sessionId allows only letters, digits, and underscores(_), and cannot exceed 128 in length.
-     * @throws {BusinessError} 15400001 - Failed to create the in-memory database.
+     * @throws {BusinessError} 15400001 - Failed to create the in-memory database. The possible reason is that
+     * other distributed data object has already set the same sessionId.
      * @syscap SystemCapability.DistributedDataManager.DataObject.DistributedObject
      * @since 12
      */