diff --git a/Events/Events.php b/Events/Events.php
new file mode 100644
index 0000000..616d545
--- /dev/null
+++ b/Events/Events.php
@@ -0,0 +1,46 @@
+<?php
+	
+declare(strict_types=1);
+
+namespace D3\ManufacturerInformation\Events;
+
+
+use OxidEsales\Eshop\Core\DatabaseProvider;
+
+class Events
+{
+	public static function activate()
+	{
+		self::d3AddLongdescColumnsToOxmanufacturers();
+	}
+	
+	public static function deActivate()
+	{
+	
+	
+	}
+	
+	/**
+	 * @return bool
+	 * @throws Exception
+	 */
+	protected static function d3AddLongdescColumnsToOxmanufacturers()
+	{
+		try {
+			DatabaseProvider::getDb(DatabaseProvider::FETCH_MODE_ASSOC)->execute("
+				ALTER TABLE oxmanufacturers
+				ADD COLUMN IF NOT EXISTS D3DESCRIPTION VARCHAR(255) NOT NULL,
+				ADD COLUMN IF NOT EXISTS D3DESCRIPTION_1 VARCHAR(255) NOT NULL,
+				ADD COLUMN IF NOT EXISTS D3DESCRIPTION_2 VARCHAR(255) NOT NULL,
+				ADD COLUMN IF NOT EXISTS D3DESCRIPTION_3 VARCHAR(255) NOT NULL;
+			");
+		} catch (\Exception $e) {
+			if ((string)$e->getCode() === '1054') {
+				return true;
+			}
+			throw $e;
+		}
+		
+		return false;
+	}
+}
\ No newline at end of file
diff --git a/metadata.php b/metadata.php
index 549c183..acabe50 100644
--- a/metadata.php
+++ b/metadata.php
@@ -15,6 +15,7 @@ declare(strict_types=1);
 	
 use D3\ManufacturerInformation\Application\Controller\Admin\ManufacturerInfoLongdesc;
 use D3\ManufacturerInformation\Application\Model\Constants;
+use D3\ManufacturerInformation\Events\Events;
 use D3\ManufacturerInformation\Modules\Application\Model\D3ManufacturerLongDesc;
 use D3\ManufacturerInformation\Modules\Application\Model\ManufacturerInfoList;
 use OxidEsales\Eshop\Application\Model\Manufacturer as OEManufacturer;
@@ -49,8 +50,8 @@ $aModule = [
 	    OEManufacturerList::class => ManufacturerInfoList::class
     ],
     'events'      => [
-//      'onActivate'    => '\D3\ThisModule\Setup\Events::onActivate',
-//      'onDeactivate'  => '\D3\ThisModule\Setup\Events::onDeactivate',
+		'onActivate'    => Events::class.'::activate',
+		'onDeactivate'  => Events::class.'::deActivate',
     ],
     'templates'   => [
 	    'd3manufacturerlongdesc.tpl'        => 'd3/manufacturerinformation/Application/views/admin/tpl/d3manufacturer_longdesc.tpl',