diff --git a/js/layouts/dashboard/dashboard-grid-slot.js b/js/layouts/dashboard/dashboard-grid-slot.js
index 76f1ef067..704981930 100644
--- a/js/layouts/dashboard/dashboard-grid-slot.js
+++ b/js/layouts/dashboard/dashboard-grid-slot.js
@@ -43,10 +43,10 @@ class IboGridSlot extends HTMLElement {
 		const oDashlet = this.oDashlet;
 
 		const aSlotData = {
-			x: this.iPosX,
-			y: this.iPostY,
-			w: this.iWidth,
-			h: this.iHeight
+			position_x: this.iPosX,
+			position_y: this.iPostY,
+			width: this.iWidth,
+			height: this.iHeight
 		};
 
 		const aDashletData = oDashlet ? oDashlet.Serialize() : {};
diff --git a/js/layouts/dashboard/dashboard.js b/js/layouts/dashboard/dashboard.js
index 5d070fa8d..70b48f560 100644
--- a/js/layouts/dashboard/dashboard.js
+++ b/js/layouts/dashboard/dashboard.js
@@ -216,8 +216,9 @@ class IboDashboard extends HTMLElement {
 			schema_version: this.schemaVersion,
 			id: this.sId,
 			title: sDashboardTitle,
-			refresh_rate: sDashboardRefreshRate,
-			dashlets: aSerializedGrid
+			refresh: sDashboardRefreshRate,
+			dashlets_list: aSerializedGrid,
+			_token: ":)"
 		};
 	}
 
@@ -226,6 +227,12 @@ class IboDashboard extends HTMLElement {
 		// TODO 3.3: Implement saving dashboard state to server when backend is ready
 		// May try to save as serialized PHP if XML format is not yet decided
 		console.log(aPayload);
+		// Fetch dashlet form from server
+		let sSaveUrl = GetAbsoluteUrlAppRoot() + '/pages/UI.php?route=dashboard.save&values='+encodeURIComponent(JSON.stringify(aPayload));
+		fetch(sSaveUrl)
+			.then(async data => {
+				// TODO 3.3 What's returned ?
+			})
 
 		this.SetEditMode(false);
 		this.aLastSavedState = aPayload;
diff --git a/js/layouts/dashboard/dashlet.js b/js/layouts/dashboard/dashlet.js
index 5686959a8..7fe19ff39 100644
--- a/js/layouts/dashboard/dashlet.js
+++ b/js/layouts/dashboard/dashlet.js
@@ -50,10 +50,11 @@ class IboDashlet extends HTMLElement {
 	}
 
 	Serialize() {
+	// TODO 3.3 Should we use getters ?
 		const aDashletData = {
 			id: this.sDashletId,
-			type: this.sType,
-			formData: this.formData,
+			class: this.sType,
+			dashlet: JSON.parse(this.formData),
 		};
 
 		return aDashletData;
diff --git a/sources/Controller/Base/Layout/DashboardController.php b/sources/Controller/Base/Layout/DashboardController.php
index aade09b1e..3cb3797cc 100644
--- a/sources/Controller/Base/Layout/DashboardController.php
+++ b/sources/Controller/Base/Layout/DashboardController.php
@@ -8,6 +8,8 @@ use Combodo\iTop\Application\UI\Base\Component\Dashlet\DashletWrapper;
 use Combodo\iTop\Application\UI\Base\Component\TurboForm\TurboFormUIBlockFactory;
 use Combodo\iTop\Application\UI\Base\iUIBlock;
 use Combodo\iTop\Application\WebPage\AjaxPage;
+use Combodo\iTop\Application\WebPage\JsonPage;
+use Combodo\iTop\Controller\AbstractController;
 use Combodo\iTop\Service\DependencyInjection\ServiceLocator;
 use ModelReflectionRuntime;
 use utils;
@@ -70,4 +72,17 @@ class DashboardController extends Controller
 
 		return $oPage;
 	}
+
+	public function OperationSave()
+	{
+		$sValues = utils::ReadParam('values', '', false, utils::ENUM_SANITIZATION_FILTER_RAW_DATA);
+		$aValues = !empty($sValues) ? json_decode($sValues, true, 20) : [];
+
+		// TODO 3.3 Consume the values and persist them
+
+		$oPage = new JsonPage();
+		$oPage->SetData($aValues);
+		$oPage->SetOutputDataOnly(true);
+		return $oPage;
+	}
 }