diff --git a/scripts/Server/helpers.php b/scripts/Server/helpers.php
index 3054685e5..c6d4a63fb 100644
--- a/scripts/Server/helpers.php
+++ b/scripts/Server/helpers.php
@@ -1,5 +1,7 @@
 <?php
     const MAX_MINUTES_FOR_INACTIVITY = 60; 
+    const PUBLIC_WORKSPACE_TYPE = 0;
+    const ALIEN_PROJECT_WORKSPACE_TYPE = 1;
     const PRIVATE_WORKSPACE_TYPE = 2;
 
     function connectToDB()
diff --git a/scripts/Server/hooks.php b/scripts/Server/hooks.php
index bf0b1d0af..6ba49def7 100644
--- a/scripts/Server/hooks.php
+++ b/scripts/Server/hooks.php
@@ -17,14 +17,23 @@ function sendDiscordMessage($payload) {
     // functions for Discord messages
     function createAddResourceMessage($type, $simName, $userName, $simDesc, $width, $height, $particles) {
         if ($type == 0) {
-            return createAddSimulationMessage($simName, $userName, $simDesc, $width, $height, $particles);
+            return createMessageForSimulation("New simulation added to the database", $simName, $userName, $simDesc, $width, $height, $particles);
         }
         else {
-            return createAddGenomeMessage($simName, $userName, $simDesc, $width, $height, $particles);
+            return createMessageForGenome("New genome added to the database", $simName, $userName, $simDesc, $width, $height, $particles);
         }
     }
 
-    function createAddSimulationMessage($simName, $userName, $simDesc, $width, $height, $particles) {
+    function createUpdateResourceMessage($type, $simName, $userName, $simDesc, $width, $height, $particles) {
+        if ($type == 0) {
+            return createMessageForSimulation("Simulation updated in the database", $simName, $userName, $simDesc, $width, $height, $particles);
+        }
+        else {
+            return createMessageForGenome("Genome updated in the database", $simName, $userName, $simDesc, $width, $height, $particles);
+        }
+    }
+
+    function createMessageForSimulation($message, $simName, $userName, $simDesc, $width, $height, $particles) {
         $particlesString = $particles < 1000 ? "{$particles}" : strval((int)($particles/1000)) . " K";
         return json_encode([
             "username" => "alien-project",
@@ -33,7 +42,7 @@ function createAddSimulationMessage($simName, $userName, $simDesc, $width, $heig
             "embeds" => [
                 [
                     "author" => [
-                        "name" => "New simulation added to the database",
+                        "name" => $message,
                         "icon_url" => "https://alien-project.org/alien-server/galaxy.png"
                     ],
                     "title" => $simName,
@@ -60,7 +69,7 @@ function createAddSimulationMessage($simName, $userName, $simDesc, $width, $heig
         ], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
     }
 
-    function createAddGenomeMessage($simName, $userName, $simDesc, $width, $height, $particles) {
+    function createMessageForGenome($message, $simName, $userName, $simDesc, $width, $height, $particles) {
         return json_encode([
             "username" => "alien-project",
             "avatar_url" => "https://alien-project.org/alien-server/logo.png",
@@ -68,7 +77,7 @@ function createAddGenomeMessage($simName, $userName, $simDesc, $width, $height,
             "embeds" => [
                 [
                     "author" => [
-                        "name" => "New genome added to the database",
+                        "name" => $message,
                         "icon_url" => "https://alien-project.org/alien-server/genome.png"
                     ],
                     "title" => $simName,
diff --git a/scripts/Server/replacesimulation.php b/scripts/Server/replacesimulation.php
index e9b76486a..423281e3c 100644
--- a/scripts/Server/replacesimulation.php
+++ b/scripts/Server/replacesimulation.php
@@ -16,16 +16,12 @@ function closeAndExit($db) {
     $pw = $_POST["password"];
 
     if (!checkPw($db, $userName, $pw)) {
-        echo json_encode(["result"=>false]);
-        $db->close();
-        exit;
+        closeAndExit($db);
     }
 
     $obj = $db->query("SELECT u.ID as id FROM user u WHERE u.NAME='".addslashes($userName)."'")->fetch_object();
     if (!$obj) {
-        echo json_encode(["result"=>false]);
-        $db->close();
-        exit;
+        closeAndExit($db);
     }
 
     $success = false;
@@ -35,11 +31,14 @@ function closeAndExit($db) {
     $settings = $_POST['settings'];
     $simId = $_POST['simId'];
     $size = strlen($content);
-    $type = array_key_exists('type', $_POST) ? $_POST['type'] : 0;
-    $workspace = array_key_exists('workspace', $_POST) ? $_POST['workspace'] : 0;
     $statistics = array_key_exists('statistics', $_POST) ? $_POST['statistics'] : "";
 
-    if ($userName != 'alien-project' && $workspace == 1) {
+    $obj = $db->query("SELECT sim.NAME as name, sim.TYPE as type, sim.FROM_RELEASE as workspace FROM simulation sim WHERE sim.ID='".addslashes($simId)."'")->fetch_object();
+    if (!$obj) {
+        closeAndExit($db);
+    }
+
+    if ($userName != 'alien-project' && $obj->workspace == ALIEN_PROJECT_WORKSPACE_TYPE) {
         closeAndExit($db);
     }
 
@@ -56,10 +55,10 @@ function closeAndExit($db) {
     }
 
     // create Discord message
-    //if ($workspace != PRIVATE_WORKSPACE_TYPE) {
-    //    $discordPayload = createAddResourceMessage($type, $simName, $userName, $simDesc, $width, $height, $particles);
-    //    sendDiscordMessage($discordPayload);
-    //}
+    if ($obj->workspace != PRIVATE_WORKSPACE_TYPE) {
+        $discordPayload = createUpdateResourceMessage($obj->type, $obj->name, $userName, $simDesc, $width, $height, $particles);
+        sendDiscordMessage($discordPayload);
+    }
 
     echo json_encode(["result"=>true]);