diff --git a/be/app/Events/SubTaskDeleted.php b/be/app/Events/SubTaskDeleted.php
new file mode 100644
index 0000000..7b749c9
--- /dev/null
+++ b/be/app/Events/SubTaskDeleted.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\SubTask;
+use Illuminate\Broadcasting\Channel;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PresenceChannel;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class SubTaskDeleted
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $subtask;
+
+    /**
+     * Create a new event instance.
+     *
+     * @return void
+     */
+    public function __construct(SubTask $subtask)
+    {
+        $this->subtask = $subtask;
+    }
+
+    /**
+     * Get the channels the event should broadcast on.
+     *
+     * @return \Illuminate\Broadcasting\Channel|array
+     */
+    public function broadcastOn()
+    {
+        return new PrivateChannel('channel-name');
+    }
+}
diff --git a/be/app/Events/SubTaskEdited.php b/be/app/Events/SubTaskEdited.php
new file mode 100644
index 0000000..cfeebb1
--- /dev/null
+++ b/be/app/Events/SubTaskEdited.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\SubTask;
+use Illuminate\Broadcasting\Channel;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PresenceChannel;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class SubTaskEdited
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $subtask;
+    public $originalSubtask;
+
+    /**
+     * Create a new event instance.
+     *
+     * @return void
+     */
+    public function __construct(SubTask $subtask, array $originalSubtask)
+    {
+        $this->subtask = $subtask;
+        $this->originalSubtask = $originalSubtask;
+    }
+
+    /**
+     * Get the channels the event should broadcast on.
+     *
+     * @return \Illuminate\Broadcasting\Channel|array
+     */
+    public function broadcastOn()
+    {
+        return new PrivateChannel('channel-name');
+    }
+}
diff --git a/be/app/Http/Controllers/SubTaskController.php b/be/app/Http/Controllers/SubTaskController.php
index db981e5..74f4ef6 100644
--- a/be/app/Http/Controllers/SubTaskController.php
+++ b/be/app/Http/Controllers/SubTaskController.php
@@ -55,7 +55,7 @@ class SubTaskController extends Controller
             $subtasks = SubTask::whereHas('mastertask', function ($query) use ($parameters) {
                 $query->where('team_id', $parameters['team_id']);
             })->whereHas('timeblocks', function ($query) use ($parameters) {
-                $query->where('start', '>=', $parameters['start']);
+                $query->where('start', '>', $parameters['start']);
                 $query->where('end', '<=', $parameters['end']);
             })->get();
 
@@ -65,7 +65,7 @@ class SubTaskController extends Controller
 
         } else if (isset($parameters['user_id'])) {
             $subtasks = SubTask::where('user_id', $parameters['user_id'])->whereHas('timeblocks', function ($query) use ($parameters) {
-                $query->where('start', '>=', $parameters['start']);
+                $query->where('start', '>', $parameters['start']);
                 $query->where('end', '<=', $parameters['end']);
             })->get();
 
@@ -222,6 +222,7 @@ class SubTaskController extends Controller
         $data['data'] = $request->all()['data'];
         $data['data']['user_id'] = $request->all()['data']['employee_id'];
         $data['data']['estimated_time'] = $request->all()['data']['duration'];
+        $data['data']['updated_by'] = User::getUserIdFromBearerToken($request->bearerToken());
 
         $request->merge($data);
 
diff --git a/be/app/Listeners/SendDeletedSubTaskNotification.php b/be/app/Listeners/SendDeletedSubTaskNotification.php
new file mode 100644
index 0000000..129d87b
--- /dev/null
+++ b/be/app/Listeners/SendDeletedSubTaskNotification.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\SubTaskDeleted;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Support\Facades\Mail;
+
+// naschval nedavam implement ShouldQueue, pretoze bol problem s tym, ze subtask uz neexistoval
+class SendDeletedSubTaskNotification
+{
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle(SubTaskDeleted $event)
+    {
+        $receiversArray[] = $event->subtask->user->email;
+        $receiversArray[] = \App\Models\User::find($event->subtask->created_by)->email;
+
+        Mail::to( $receiversArray )->send( new \App\Mail\SubTaskDeleted( $event->subtask ) );
+    }
+}
diff --git a/be/app/Listeners/SendEditedMasterTaskNotification.php b/be/app/Listeners/SendEditedMasterTaskNotification.php
index ef66494..a33b846 100644
--- a/be/app/Listeners/SendEditedMasterTaskNotification.php
+++ b/be/app/Listeners/SendEditedMasterTaskNotification.php
@@ -4,10 +4,9 @@ namespace App\Listeners;
 
 use App\Events\MasterTaskEdited;
 use Illuminate\Contracts\Queue\ShouldQueue;
-use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Support\Facades\Mail;
 
-class SendEditedMasterTaskNotification
+class SendEditedMasterTaskNotification implements ShouldQueue
 {
     /**
      * Create the event listener.
@@ -29,11 +28,22 @@ class SendEditedMasterTaskNotification
     {
         $difference = [];
 
+        $editedMasterTaskArray = $event->mastertask->toArray();
+        $originalMasterTaskArray = $event->originalMastertask;
+
+        // unset key from array
+        unset($editedMasterTaskArray['created_at']);
+        unset($editedMasterTaskArray['updated_at']);
+        unset($editedMasterTaskArray['subtasks']);
+
+        unset($originalMasterTaskArray['created_at']);
+        unset($originalMasterTaskArray['updated_at']);
+
         // get the difference between $mastertask and $originalMastertask
-        $modelDiff = array_diff($event->mastertask->toArray(), $event->originalMastertask);
+        $modelDiff = array_diff_assoc($editedMasterTaskArray, $originalMasterTaskArray);
 
         foreach ( $modelDiff as $key => $diff ) {
-            if (in_array($key, ['created_at', 'updated_at', 'status'])) {
+            if (in_array($key, ['status'])) {
                 continue;
             }
 
@@ -41,7 +51,9 @@ class SendEditedMasterTaskNotification
             if ($key == 'is_finished' && $diff == 0) {
                 foreach ( $event->mastertask->subtasks as $subtask ) {
 //            Mail::to( $subtask->user->email )->send( new \App\Mail\MasterTaskEdited( $event->mastertask, $difference ) );
-                    Mail::to( 'feher@studiotem.com' )->send( new \App\Mail\MasterTaskEdited( $event->mastertask, $difference ) );
+                    Mail::to( 'feher@studiotem.com' )->send( new \App\Mail\MasterTaskReopened( $event->mastertask ) );
+
+                    return;
                 }
             }
 
diff --git a/be/app/Listeners/SendEditedSubTaskNotification.php b/be/app/Listeners/SendEditedSubTaskNotification.php
new file mode 100644
index 0000000..c8f0c18
--- /dev/null
+++ b/be/app/Listeners/SendEditedSubTaskNotification.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Events\SubTaskEdited;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Support\Facades\Mail;
+
+class SendEditedSubTaskNotification
+{
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle(SubTaskEdited $event)
+    {
+        // emailova notifikacia sa posiela len ak subtask bol upraveny inym uzivatelom
+        if ($event->subtask->updated_by == $event->subtask->user_id) {
+            return;
+        }
+
+        $difference = [];
+
+        $editedSubTaskArray = $event->subtask->toArray();
+        $originalSubTaskArray = $event->originalSubtask;
+
+        // unset key from array
+        unset($editedSubTaskArray['created_at']);
+        unset($editedSubTaskArray['updated_at']);
+        unset($editedSubTaskArray['timesheets']);
+        unset($editedSubTaskArray['timeblocks']);
+
+        unset($originalSubTaskArray['created_at']);
+        unset($originalSubTaskArray['updated_at']);
+        unset($originalSubTaskArray['timesheets']);
+        unset($originalSubTaskArray['timeblocks']);
+
+        // get the difference between $subtask and $originalSubtask
+        $modelDiff = array_diff_assoc($editedSubTaskArray, $originalSubTaskArray);
+
+        foreach ( $modelDiff as $key => $diff ) {
+            if (in_array($key, ['status', 'tracked_time'])) {
+                continue;
+            }
+
+            $difference[$key] = $diff;
+        }
+
+        if (empty($difference)) {
+            return;
+        }
+
+        //      Mail::to( $subtask->user->email )->send( new \App\Mail\SubTaskEdited( $event->subtask, $difference ) );
+        Mail::to( 'feher@studiotem.com' )->send( new \App\Mail\SubTaskEdited( $event->subtask, $difference ) );
+
+    }
+}
diff --git a/be/app/Listeners/SendNewTaskEmailNotification.php b/be/app/Listeners/SendNewSubTaskEmailNotification.php
similarity index 92%
rename from be/app/Listeners/SendNewTaskEmailNotification.php
rename to be/app/Listeners/SendNewSubTaskEmailNotification.php
index 9c173e8..31524ab 100644
--- a/be/app/Listeners/SendNewTaskEmailNotification.php
+++ b/be/app/Listeners/SendNewSubTaskEmailNotification.php
@@ -9,7 +9,7 @@ use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Support\Facades\Mail;
 
-class SendNewTaskEmailNotification implements ShouldQueue
+class SendNewSubTaskEmailNotification implements ShouldQueue
 {
     /**
      * Create the event listener.
diff --git a/be/app/Mail/MasterTaskReopened.php b/be/app/Mail/MasterTaskReopened.php
new file mode 100644
index 0000000..0efe114
--- /dev/null
+++ b/be/app/Mail/MasterTaskReopened.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Mail;
+
+use App\Models\MasterTask;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class MasterTaskReopened extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $mastertask;
+
+    /**
+     * Create a new message instance.
+     *
+     * @return void
+     */
+    public function __construct(MasterTask $mastertask)
+    {
+        $this->mastertask = $mastertask;
+    }
+
+    /**
+     * Get the message envelope.
+     *
+     * @return \Illuminate\Mail\Mailables\Envelope
+     */
+    public function envelope()
+    {
+        return new Envelope(
+            subject: 'Master Task ' . $this->mastertask->title . ' was reopened',
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     *
+     * @return \Illuminate\Mail\Mailables\Content
+     */
+    public function content()
+    {
+        return new Content(
+            view: 'emails.task.master_task_reopened',
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array
+     */
+    public function attachments()
+    {
+        return [];
+    }
+}
diff --git a/be/app/Mail/NewTask.php b/be/app/Mail/NewTask.php
index 0bf04a0..c4c412c 100644
--- a/be/app/Mail/NewTask.php
+++ b/be/app/Mail/NewTask.php
@@ -46,7 +46,7 @@ class NewTask extends Mailable
     public function content()
     {
         return new Content(
-            view: 'emails.task.new_task_created',
+            view: 'emails.task.sub_task_created',
         );
     }
 
diff --git a/be/app/Mail/SubTaskDeleted.php b/be/app/Mail/SubTaskDeleted.php
new file mode 100644
index 0000000..46487f4
--- /dev/null
+++ b/be/app/Mail/SubTaskDeleted.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Mail;
+
+use App\Models\SubTask;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class SubTaskDeleted extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $subtask;
+
+    /**
+     * Create a new message instance.
+     *
+     * @return void
+     */
+    public function __construct(SubTask $subtask)
+    {
+        $this->subtask = $subtask;
+    }
+
+    /**
+     * Get the message envelope.
+     *
+     * @return \Illuminate\Mail\Mailables\Envelope
+     */
+    public function envelope()
+    {
+        return new Envelope(
+            subject: 'Sub Task ' . $this->subtask->mastertask->title . ' was deleted',
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     *
+     * @return \Illuminate\Mail\Mailables\Content
+     */
+    public function content()
+    {
+        return new Content(
+            view: 'emails.task.sub_task_deleted',
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array
+     */
+    public function attachments()
+    {
+        return [];
+    }
+}
diff --git a/be/app/Mail/SubTaskEdited.php b/be/app/Mail/SubTaskEdited.php
new file mode 100644
index 0000000..22f3de4
--- /dev/null
+++ b/be/app/Mail/SubTaskEdited.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Mail;
+
+use App\Models\SubTask;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class SubTaskEdited extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $subtask;
+    public $difference;
+
+    /**
+     * Create a new message instance.
+     *
+     * @return void
+     */
+    public function __construct(SubTask $subtask, array $difference)
+    {
+        $this->subtask = $subtask;
+        $this->difference = $difference;
+    }
+
+    /**
+     * Get the message envelope.
+     *
+     * @return \Illuminate\Mail\Mailables\Envelope
+     */
+    public function envelope()
+    {
+        return new Envelope(
+            subject: 'Sub Task Edited',
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     *
+     * @return \Illuminate\Mail\Mailables\Content
+     */
+    public function content()
+    {
+        return new Content(
+            view: 'emails.task.sub_task_edited',
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array
+     */
+    public function attachments()
+    {
+        return [];
+    }
+}
diff --git a/be/app/Observers/SubTaskObserver.php b/be/app/Observers/SubTaskObserver.php
index 9c84ff0..be329b3 100644
--- a/be/app/Observers/SubTaskObserver.php
+++ b/be/app/Observers/SubTaskObserver.php
@@ -3,6 +3,8 @@
 namespace App\Observers;
 
 use App\Events\SubTaskCreated;
+use App\Events\SubTaskDeleted;
+use App\Events\SubTaskEdited;
 use App\Models\SubTask;
 
 class SubTaskObserver
@@ -24,6 +26,8 @@ class SubTaskObserver
         $subTask->created_by = $subTask->getOriginal('created_by');
 
         $subTask->tracked_time = $subTask->timesheets->sum('time');
+
+        SubTaskEdited::dispatch($subTask, $subTask->getOriginal());
     }
 
     /**
@@ -46,7 +50,7 @@ class SubTaskObserver
      */
     public function deleted(SubTask $subTask)
     {
-        //
+        SubTaskDeleted::dispatch($subTask);
     }
 
     /**
diff --git a/be/app/Providers/EventServiceProvider.php b/be/app/Providers/EventServiceProvider.php
index 8ab9100..01d400a 100644
--- a/be/app/Providers/EventServiceProvider.php
+++ b/be/app/Providers/EventServiceProvider.php
@@ -4,8 +4,12 @@ namespace App\Providers;
 
 use App\Events\MasterTaskEdited;
 use App\Events\SubTaskCreated;
+use App\Events\SubTaskDeleted;
+use App\Events\SubTaskEdited;
+use App\Listeners\SendDeletedSubTaskNotification;
 use App\Listeners\SendEditedMasterTaskNotification;
-use App\Listeners\SendNewTaskEmailNotification;
+use App\Listeners\SendEditedSubTaskNotification;
+use App\Listeners\SendNewSubTaskEmailNotification;
 use App\Models\MasterTask;
 use App\Models\SubTask;
 use App\Observers\MasterTaskObserver;
@@ -27,9 +31,15 @@ class EventServiceProvider extends ServiceProvider
             SendEmailVerificationNotification::class,
         ],
         SubTaskCreated::class => [
-            SendNewTaskEmailNotification::class,
+            SendNewSubTaskEmailNotification::class,
             //LogEvent::class,
         ],
+        SubTaskDeleted::class => [
+            SendDeletedSubTaskNotification::class
+        ],
+        SubTaskEdited::class => [
+            SendEditedSubTaskNotification::class
+        ],
         MasterTaskEdited::class => [
             SendEditedMasterTaskNotification::class
         ],
diff --git a/be/app/Services/Karat/Api.php b/be/app/Services/Karat/Api.php
index dce8a46..7419e19 100644
--- a/be/app/Services/Karat/Api.php
+++ b/be/app/Services/Karat/Api.php
@@ -68,9 +68,11 @@ class Api
 
     public static function setTimesheet($timesheet)
     {
+        echo 'Setting timesheet for project ' . $timesheet->subtask->mastertask->project->code . PHP_EOL;
+
         $body = [
             'command' => 'TM_SET_vykaz',
-            'zakazka' => $timesheet->subtask->project->code,
+            'zakazka' => $timesheet->subtask->mastertask->project->code,
             'zdroj' => $timesheet->user->code,
             'hodin' => $timesheet->time,
             'datum' => $timesheet->created_at->format('Y-m-d'),
diff --git a/be/app/Services/Karat/KaratService.php b/be/app/Services/Karat/KaratService.php
index b2b5e49..f34b04c 100644
--- a/be/app/Services/Karat/KaratService.php
+++ b/be/app/Services/Karat/KaratService.php
@@ -134,6 +134,9 @@ class KaratService
         $notSyncedTimesheets = Timesheet::whereNull('synced_to_karat')->get();
 
         $notSyncedTimesheets->each(function ($timesheet) {
+            if (!$timesheet->subtask || !$timesheet->subtask->mastertask->project)
+                return false;
+
             $this->syncTimesheet($timesheet);
         });
     }
@@ -141,7 +144,7 @@ class KaratService
     private function syncTimesheet(Timesheet $timesheet) {
         $this->api->setTimesheet($timesheet);
 
-        $timesheet->synced_to_karat = true;
+        $timesheet->synced_to_karat = Carbon::now();
         $timesheet->save();
     }
 
diff --git a/be/database/migrations/2023_04_13_085734_add_edited_by_to_subtask.php b/be/database/migrations/2023_04_13_085734_add_edited_by_to_subtask.php
new file mode 100644
index 0000000..0dfa1d2
--- /dev/null
+++ b/be/database/migrations/2023_04_13_085734_add_edited_by_to_subtask.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('sub_tasks', function (Blueprint $table) {
+            $table->foreignIdFor( \App\Models\User::class, 'updated_by')->after('updated_at')->nullable()->default(null);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('subtask', function (Blueprint $table) {
+            //
+        });
+    }
+};
diff --git a/be/resources/views/emails/task/master_task_reopened.blade.php b/be/resources/views/emails/task/master_task_reopened.blade.php
new file mode 100644
index 0000000..27c794c
--- /dev/null
+++ b/be/resources/views/emails/task/master_task_reopened.blade.php
@@ -0,0 +1 @@
+Master Task {{$mastertask->title}} was reopened. <br><br>
diff --git a/be/resources/views/emails/task/new_task_created.blade.php b/be/resources/views/emails/task/sub_task_created.blade.php
similarity index 100%
rename from be/resources/views/emails/task/new_task_created.blade.php
rename to be/resources/views/emails/task/sub_task_created.blade.php
diff --git a/be/resources/views/emails/task/sub_task_deleted.blade.php b/be/resources/views/emails/task/sub_task_deleted.blade.php
new file mode 100644
index 0000000..d2bd471
--- /dev/null
+++ b/be/resources/views/emails/task/sub_task_deleted.blade.php
@@ -0,0 +1 @@
+Sub Task {{$subtask->mastertask->title}} was deleted. <br><br>
diff --git a/be/resources/views/emails/task/sub_task_edited.blade.php b/be/resources/views/emails/task/sub_task_edited.blade.php
new file mode 100644
index 0000000..f6d8f5e
--- /dev/null
+++ b/be/resources/views/emails/task/sub_task_edited.blade.php
@@ -0,0 +1,6 @@
+Sub Task edited. <br><br>
+
+Edited fields: <br> <br>
+@foreach($difference as $key => $diff)
+    {{ $key }}: {{ $diff }} <br>
+@endforeach