diff --git a/im-center-server/src/main/java/cn/axzo/im/group/member/GroupMemberSyncer.java b/im-center-server/src/main/java/cn/axzo/im/group/member/GroupMemberSyncer.java
index c7f14d6..dba0113 100644
--- a/im-center-server/src/main/java/cn/axzo/im/group/member/GroupMemberSyncer.java
+++ b/im-center-server/src/main/java/cn/axzo/im/group/member/GroupMemberSyncer.java
@@ -1,7 +1,6 @@
 package cn.axzo.im.group.member;
 
 import cn.axzo.im.center.api.vo.PersonAccountAttribute;
-import cn.axzo.im.center.common.enums.AppTypeEnum;
 import cn.axzo.im.center.common.enums.GroupMemberType;
 import cn.axzo.im.center.common.enums.YesOrNo;
 import cn.axzo.im.channel.netease.client.NimClient;
@@ -25,6 +24,8 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 
+import static cn.axzo.im.center.api.vo.PersonAccountAttribute.robot;
+
 /**
  * @author yanglin
  */
@@ -66,24 +67,19 @@ public class GroupMemberSyncer {
     private List<GroupMember> parseGroupMembers(Group group, NimGroupInfo groupInfo) {
         ArrayList<GroupMember> accounts = new ArrayList<>();
         for (NimGroupMemberInfo member : groupInfo.getOwnerAndMembers()) {
-            PersonAccountAttribute person = ImAccountParser.parsePerson(member.getAccid()).orElse(null);
+            PersonAccountAttribute person = ImAccountParser
+                    .parsePerson(member.getAccid())
+                    .orElse(robot());
             GroupMember account = new GroupMember();
             accounts.add(account);
             account.setTid(group.getTid());
             account.setImAccount(member.getAccid());
             account.setMemberType(groupInfo.getOwner().equals(member)
                     ? GroupMemberType.OWNER : GroupMemberType.MEMBER);
-            if (person == null) {
-                account.setPersonId(0L);
-                account.setPersonOuId(0L);
-                account.setAppType(AppTypeEnum.NONE);
-                account.setIsRobot(YesOrNo.YES);
-            } else {
-                account.setPersonId(Long.valueOf(person.getPersonId()));
-                account.setPersonOuId(person.ouIdOrDefault());
-                account.setAppType(person.getAppType());
-                account.setIsRobot(YesOrNo.NO);
-            }
+            account.setPersonId(person.personIdAsLong());
+            account.setPersonOuId(person.ouIdOrDefault());
+            account.setAppType(person.getAppType());
+            account.setIsRobot(person.isRobot() ? YesOrNo.YES : YesOrNo.NO);
         }
         return accounts;
     }
diff --git a/im-center-server/src/main/java/cn/axzo/im/group/message/GroupMessageSyncHandler.java b/im-center-server/src/main/java/cn/axzo/im/group/message/GroupMessageSyncHandler.java
index 8d45970..d10786b 100644
--- a/im-center-server/src/main/java/cn/axzo/im/group/message/GroupMessageSyncHandler.java
+++ b/im-center-server/src/main/java/cn/axzo/im/group/message/GroupMessageSyncHandler.java
@@ -95,7 +95,7 @@ class GroupMessageSyncHandler implements Runnable {
             messages.add(message);
             message.setTid(group.getTid());
             message.setFromAccount(nimMessage.getFrom());
-            message.setFromPersonId(Long.parseLong(person.getPersonId()));
+            message.setFromPersonId(person.personIdAsLong());
             message.setFromPersonOuId(person.getOuId());
             message.setFromPersonAppType(person.getAppType());
             message.setIsFromRobot(person.isRobot() ? YesOrNo.YES : YesOrNo.NO);