diff --git a/RMuseum/Services/Implementation/GanjoorAppUserService.cs b/RMuseum/Services/Implementation/GanjoorAppUserService.cs
index ed746c20..b9045c9a 100644
--- a/RMuseum/Services/Implementation/GanjoorAppUserService.cs
+++ b/RMuseum/Services/Implementation/GanjoorAppUserService.cs
@@ -202,7 +202,12 @@ namespace RMuseum.Services.Implementation
                 return new RServiceResult<bool>(false, "کاربر مورد نظر یافت نشد");
             }
 
-            string nickName = unmodifiedUserInfo.NickName;
+            string nickName = unmodifiedUserInfo.NickName.Trim();
+
+            if (string.IsNullOrEmpty(nickName))
+            {
+                return new RServiceResult<bool>(false, "نام مستعار نمی‌تواند خالی باشد.");
+            }
 
             RServiceResult<bool> res = await base.ModifyUser(userId, updateUserInfo);
             if(res.Result)
diff --git a/RSecurityBackend/RSecurityBackend.xml b/RSecurityBackend/RSecurityBackend.xml
index d46fb6cf..076c2111 100644
--- a/RSecurityBackend/RSecurityBackend.xml
+++ b/RSecurityBackend/RSecurityBackend.xml
@@ -276,6 +276,13 @@
             <param name="userCause"></param>
             <returns></returns>
         </member>
+        <member name="M:RSecurityBackend.Controllers.AppUserControllerBase.GetUserBehaviourLogsAsync(System.Guid)">
+            <summary>
+            get user behaviour logs
+            </summary>
+            <param name="userId"></param>
+            <returns></returns>
+        </member>
         <member name="M:RSecurityBackend.Controllers.AppUserControllerBase.KickOutUserAsync(RSecurityBackend.Models.Auth.ViewModels.UserCauseViewModel)">
             <summary>
             kick out a user
diff --git a/RSecurityBackend/Services/Implementation/AppUserService.cs b/RSecurityBackend/Services/Implementation/AppUserService.cs
index 4d429200..c29cd2a8 100644
--- a/RSecurityBackend/Services/Implementation/AppUserService.cs
+++ b/RSecurityBackend/Services/Implementation/AppUserService.cs
@@ -806,6 +806,16 @@ namespace RSecurityBackend.Services.Implementation
                 return new RServiceResult<bool>(false, "برای تغییر تصویر کاربر از تابع اختصاصی این کار استفاده کنید");
             }
 
+            updateUserInfo.FirstName = updateUserInfo.FirstName.Trim();
+            updateUserInfo.SureName = updateUserInfo.SureName.Trim();
+            updateUserInfo.NickName = updateUserInfo.NickName.Trim();
+
+            if(string.IsNullOrEmpty(updateUserInfo.NickName) && string.IsNullOrEmpty(updateUserInfo.FirstName+ updateUserInfo.SureName))
+            {
+                return new RServiceResult<bool>(false, "نام، نام خانوادگی و نام مستعار نمی‌توانند همگی خالی باشند.");
+            }
+
+