diff --git a/SE_API/ProjectRoutes.py b/SE_API/ProjectRoutes.py
index a2d1383..998039d 100644
--- a/SE_API/ProjectRoutes.py
+++ b/SE_API/ProjectRoutes.py
@@ -377,10 +377,10 @@ def deleteProject(token,projectId):
 
     #remove all users related to project
     for uId in p.membersId:
-        user = User.get_by_id(uId)
+        user = User.get_by_id(int(uId))
         if user is None:
             return bad_request("trying to remove a user from project failed")
-        user.projects_id_list.remove(p.key().id())
+        user.projects_id_list.remove(str(p.key().id()))
         db.put(user)
 
 
diff --git a/SE_API/TaskRoutes.py b/SE_API/TaskRoutes.py
index d6b4301..e7c6c54 100644
--- a/SE_API/TaskRoutes.py
+++ b/SE_API/TaskRoutes.py
@@ -25,6 +25,7 @@ from models.Project import Project
 #Validation Utils Libs
 from SE_API.Validation_Utils import *
 from SE_API.Respones_Utils import *
+from Email_Utils import *
 
 
 task_routes = Blueprint("task_routes", __name__)
@@ -866,6 +867,38 @@ def documentation():
     return auto.html()
 
 
+@task_routes.route('/api/tasks/sendTaskReminder', methods=['GET'])
+def sendTaskReminder():
+
+    tasks = Task.all()
+
+    try:
+        for t in tasks.run():
+            if t.dueDate == datetime.date.today() + datetime.timedelta(days=1):
+                course = Course.get_by_id(int(t.courseId))
+                if t.isPersonal:
+                    for uId in course.membersId:
+                        tc = TaskComponent.all().filter("taskId = ", t.key().id()).filter("userId = ", int(uId))
+                        if tc.count() == 0:
+                            user = User.get_by_id(int(uId))
+                            send_task_reminder(user.email, user.name, t.title, course.courseName)
+                            print ""
+
+                else:
+                    projects = Project.all().filter("courseId = ", course.key().id())
+                    for p in projects.run():
+                        tc = TaskComponent.all().filter("taskId = ", t.key().id()).filter("userId = ", p.key().id())
+                        if tc.count() == 0:
+                            for uId in p.membersId:
+                                user = User.get_by_id(int(uId))
+                                send_task_reminder(user.email, user.name, t.title, course.courseName)
+        return accepted()
+
+    except:
+        return bad_request()
+
+
+
 
 
 
diff --git a/cron.yaml b/cron.yaml
index 67b8d7e..d1ffbd4 100644
--- a/cron.yaml
+++ b/cron.yaml
@@ -1,4 +1,7 @@
 cron:
  - description: update project data
    url: /api/projects/updateProjectsInfo
-   schedule: every 1 hours
\ No newline at end of file
+   schedule: every 1 hours
+ - description: send task notification mail
+   url: /api/tasks/sendTaskReminder
+   schedule: every day 03:00
\ No newline at end of file