diff --git a/Models/eva_create_evaluation_detail_status/eva_create_evaluation_detail_statusService.cs b/Models/eva_create_evaluation_detail_status/eva_create_evaluation_detail_statusService.cs
index 88bddfb..7b56297 100644
--- a/Models/eva_create_evaluation_detail_status/eva_create_evaluation_detail_statusService.cs
+++ b/Models/eva_create_evaluation_detail_status/eva_create_evaluation_detail_statusService.cs
@@ -14,6 +14,11 @@ using System.Net;
 using TTSW.Configure;
 using Microsoft.Extensions.Options;
 using System.Data;
+using Npgsql;
+using NpgsqlTypes;
+using Microsoft.Extensions.Configuration;
+using Newtonsoft.Json;
+using System.Text;
 
 namespace TodoAPI2.Models
 {
@@ -22,12 +27,17 @@ namespace TodoAPI2.Models
         private IBaseRepository2<eva_create_evaluation_detailEntity, int> _repository;
         private IMyDatabase db;
         private Iexternal_linkageService ext;
+        private Iexternal_employeeService emp;
+        private IConfiguration Configuration { get; set; }
 
-        public eva_create_evaluation_detail_statusService(IBaseRepository2<eva_create_evaluation_detailEntity, int> repository, IMyDatabase mydb, Iexternal_linkageService inext)
+        public eva_create_evaluation_detail_statusService(IBaseRepository2<eva_create_evaluation_detailEntity, int> repository,
+            IMyDatabase mydb, Iexternal_linkageService inext, Iexternal_employeeService inemp, IConfiguration configuration)
         {
             _repository = repository;
             db = mydb;
             ext = inext;
+            emp = inemp;
+            Configuration = configuration;
         }
 
         #region Private Functions
@@ -160,8 +170,6 @@ namespace TodoAPI2.Models
                                where k.id == existingEntity.create_evaluation_id
                                select k).FirstOrDefault();
 
-            // Do notification here
-
             if (existingEntity != null)
             {
                 existingEntity.create_evaluation_id = model.create_evaluation_id;
@@ -173,39 +181,66 @@ namespace TodoAPI2.Models
 
                 if (current_eva.employee_id == existingEntity.chief) // หัวหน้าและผู้ประเมินสูงสุด เป็นคนคนเดียวกัน
                 {
-                    if(existingEntity.status_chief == "Y") existingEntity.status_supervisor = existingEntity.status_chief;
+                    if (existingEntity.status_chief == "Y") existingEntity.status_supervisor = existingEntity.status_chief;
                 }
 
+                int? noti_to_employee_id = null;
+                int? owner_eva_employee_id = existingEntity.employee_id;
+                string noti_message = "กรุณาตรวจสอบแบบประเมินของ {0}";
+                string noti_url = "/eva/eva_create_evaluation_detail_processView/eva_create_evaluation_detail_process_d2?id=" + existingEntity.id.ToString();
+
                 if (model.status_mode == "next0")
                 {
                     existingEntity.status_self_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
+                    noti_to_employee_id = existingEntity.chief;
+                    noti_message = "กรุณาตรวจสอบแบบประเมินของ {0}";
+                    noti_url = "/eva/eva_create_evaluation_detail_processView/eva_create_evaluation_detail_process_d?id=" + existingEntity.id.ToString();
                 }
                 else if (model.status_mode == "next1")
                 {
                     existingEntity.status_chief_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
+                    if (current_eva.employee_id == existingEntity.chief) // หัวหน้าและผู้ประเมินสูงสุด เป็นคนคนเดียวกัน
+                    {
+                        noti_to_employee_id = current_eva.supervisor1_id;
+                    }
+                    else
+                    {
+                        noti_to_employee_id = current_eva.employee_id;
+                    }
                 }
                 else if (model.status_mode == "back1")
                 {
                     existingEntity.status_chief_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
                     existingEntity.status_self_click_date = null;
+                    noti_to_employee_id = existingEntity.employee_id;
+                    noti_message = "ข้อตกลงการประเมินของคุณ ({0}) ถูกตีกลับ";
+                    noti_url = "/eva/eva_create_evaluation_detail_agreementView/eva_create_evaluation_detail_agreement_d?id=" + existingEntity.id.ToString();
                 }
                 else if (model.status_mode == "next2")
                 {
                     existingEntity.status_supervisor_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
+                    noti_to_employee_id = current_eva.supervisor1_id;
                 }
                 else if (model.status_mode == "back2")
                 {
                     existingEntity.status_supervisor_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
                     existingEntity.status_chief_click_date = null;
+                    noti_to_employee_id = existingEntity.chief;
+                    noti_message = "แบบประเมินของ {0} ถูกตีกลับ";
+                    noti_url = "/eva/eva_create_evaluation_detail_agreementView/eva_create_evaluation_detail_agreement_d?id=" + existingEntity.id.ToString();
                 }
                 else if (model.status_mode == "next3")
                 {
                     existingEntity.status_supervisor1A_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
+                    noti_to_employee_id = current_eva.supervisor2_id;
                 }
                 else if (model.status_mode == "back3")
                 {
                     existingEntity.status_supervisor1A_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
                     existingEntity.status_supervisor_click_date = null;
+                    noti_to_employee_id = current_eva.employee_id;
+                    noti_message = "แบบประเมินของ {0} ถูกตีกลับ";
+                    noti_url = "/eva/eva_create_evaluation_detail_agreementView/eva_create_evaluation_detail_agreement_d2?id=" + existingEntity.id.ToString();
                 }
                 else if (model.status_mode == "next4")
                 {
@@ -215,8 +250,13 @@ namespace TodoAPI2.Models
                 {
                     existingEntity.status_supervisor2A_click_date = MyHelper.RemoveTimeFromDate(DateTime.Now);
                     existingEntity.status_supervisor1A_click_date = null;
+                    noti_to_employee_id = current_eva.supervisor1_id;
+                    noti_message = "แบบประเมินของ {0} ถูกตีกลับ";
+                    noti_url = "/eva/eva_create_evaluation_detail_agreementView/eva_create_evaluation_detail_agreement_d2?id=" + existingEntity.id.ToString();
                 }
 
+                SendNotification(noti_to_employee_id, owner_eva_employee_id, existingEntity.id, noti_message, noti_url);
+
                 var updated = _repository.Update(id, existingEntity);
                 return Get(updated.id);
             }
@@ -224,6 +264,38 @@ namespace TodoAPI2.Models
                 throw new NotificationException("No data to update");
         }
 
+        private void SendNotification(int? noti_to_employee_id, int? owner_eva_employee_id, int? detail_id, string noti_message, string noti_url)
+        {
+            if (!noti_to_employee_id.HasValue || !owner_eva_employee_id.HasValue || !detail_id.HasValue) return;
+
+            var all_emp = emp.GetAllEmployee();
+            int? noti_to_user_id = (from i in all_emp
+                                    where i.id == noti_to_employee_id
+                                    select i.user_id).FirstOrDefault();
+            var owner_info = (from i in all_emp
+                              where i.id == owner_eva_employee_id
+                              select i).FirstOrDefault();
+            string sql = $@"
+insert into notifications(id,type,notifiable_type,notifiable_id,data)
+values('{Guid.NewGuid().ToString()}','App\Notifications\WorkflowNotification','App\Models\User',{noti_to_user_id.ToString()},@data)
+";
+            DataOfNotification d = new DataOfNotification();
+            d.title = noti_message.Replace("{0}", owner_info.fullname);
+            d.body = noti_message.Replace("{0}", owner_info.fullname);
+            d.url = noti_url;
+
+            NpgsqlParameter data = new NpgsqlParameter();
+            data.DbType = DbType.String;
+            data.Direction = ParameterDirection.Input;
+            data.ParameterName = "data";
+            data.Value = JsonConvert.SerializeObject(d);
+
+            List<NpgsqlParameter> para = new List<NpgsqlParameter>();
+            para.Add(data);
+
+            db.ExecuteNonQueryNpgsql(sql, para);
+        }
+
         public string UpdateMultiple(List<eva_create_evaluation_detail_statusInputModel> model)
         {
             foreach (var i in model)
@@ -240,7 +312,6 @@ namespace TodoAPI2.Models
                         existingEntity.status_supervisor1A = i.status_supervisor1A;
                         existingEntity.status_supervisor2A = i.status_supervisor2A;
 
-
                         _repository.UpdateWithoutCommit(i.id.Value, existingEntity);
                     }
                 }
@@ -290,4 +361,11 @@ namespace TodoAPI2.Models
 
         #endregion
     }
+
+    public class DataOfNotification
+    {
+        public string title { get; set; }
+        public string body { get; set; }
+        public string url { get; set; }
+    }
 }
\ No newline at end of file