diff --git a/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java b/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
index 02679a2..8adbeb6 100644
--- a/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
+++ b/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
@@ -68,9 +68,9 @@ public class GroupManager {
         BizAssertions.assertTrue(savedGroup == null || savedGroup.isDismissed(),
                 String.format("群已经存在: %s", request.getName()));
         ImAccounts imAccounts = accountService.getOrCreateImAccounts(request.getPeople());
+        String owner = imAccounts.findAccount(request.getOwner()).orElse(null);
+        BizAssertions.assertNotNull(owner, "群主没有IM账号, 无法创建群. {}", request.getOwner());
         return transactionTemplate.execute(unused -> {
-            String owner = imAccounts.findAccount(request.getOwner()).orElse(null);
-            BizAssertions.assertNotNull(owner, "群主没有IM账号, 无法创建群. {}", request.getOwner());
             Group group = groupSupport.buildNewGroup(request, imAccounts);
             BizAssertions.assertTrue(group.addMoreMembers(
                     request.getPeople().size()), "无法创建群, 群成员数量超过上限" + group.getMemberLimit());