diff --git a/adm/ajax_vp.php b/adm/ajax_vp.php
index 81da6fea..67aeec60 100644
--- a/adm/ajax_vp.php
+++ b/adm/ajax_vp.php
@@ -125,6 +125,11 @@ if (isset($_GET['getSales'])){
                                     <i class="glyphicon glyphicon-eye-open"></i> Voir Catégorie BO
                                 </a>
                             </li>
+                            <li>
+                                <a style="cursor: pointer;" onclick="'.($sale->lock_position?'itemUnLockPosition('.$sale->id.')':'itemLockPosition('.$sale->id.')').'">
+                                    <span class="anticon anticon-lock"></span> '.($sale->lock_position?'Défixer':'Fixer').' position
+                                </a>
+                            </li>
                             <li role="separator" class="divider"></li>
                             <li>
                                 <a style="cursor: pointer;" onclick="itemDeletion('.$sale->id.')">
@@ -227,76 +232,53 @@ if (isset($_GET['updatePositionDrag'])){
 		die();
 	}
 
-	$updated_sales = array();
+	$lock_positions = array();
+	foreach(Db::getInstance()->executeS('SELECT position FROM '._DB_PREFIX_.'privatesale WHERE lock_position = 1') as $lock){
+		$lock_positions[] = (int)$lock['position'];
+	}
 
+	$_positions = array();
 	if($position > 0){
-		$sales_sql = "SELECT id_sale, position, lock_position FROM "._DB_PREFIX_."privatesale WHERE position BETWEEN ". ($position_initial +1) .' AND ' .$new_position.' ORDER BY position ASC';
+		$sales_sql = "SELECT id_sale, position FROM "._DB_PREFIX_."privatesale WHERE position BETWEEN ". ($position_initial +1) .' AND ' .$new_position.' AND lock_position = 0 ORDER BY position DESC';
 	 	$sales = Db::getInstance()->ExecuteS($sales_sql);
 	 	foreach ($sales as $key => $sale){
-	 		if(in_array($sale['id_sale'], $updated_sales)){
-	 			continue;
-	 		}
-
-	 		if((int)$sale['lock_position'] == 1){
-	 			$i = 1;
-	 			if(isset($sales[$key+1])){
-	 				$new_sale = $sales[$key+$i];
-	 				$updated_sales[] = (int)$new_sale['id_sale'];
-	 			}
-	 			while ($new_sale) {
-	 				$i++;
-	 				if((int)$new_sale['lock_position'] == 1){
-	 					if(isset($sales[$key+$i])) {
-	 						$new_sale = $sales[$key+$i];
-	 						$updated_sales[] = (int)$new_sale['id_sale'];
-	 					} else {
-	 						$new_sale = false;
-	 					}
-	 				} else {
-	 					Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = (position -'.$i.') WHERE id_sale = '. $new_sale['id_sale']);
-	 					$new_sale = false;
-	 				}
-	 			}
-	 		} else {
-	 			Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = (position -1) WHERE id_sale = '. $sale['id_sale']);
-	 			$updated_sales[] = (int)$sale['id_sale'];
+	 		$pos = (int)$sale['position']-1;
+	 		while(in_array($pos, $lock_positions)){
+	 			$pos = $pos - 1;
 	 		}
+	 		$_positions[(int)$sale['id_sale']] = array(
+	 			'initial' => (int)$sale['position'],
+	 			'new' => $pos,
+	 		);
+	 		//Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = '.$pos.' WHERE id_sale = '. $sale['id_sale']);
 	 	}
 	} else {
-		$sales_sql = "SELECT id_sale, position, lock_position FROM "._DB_PREFIX_."privatesale WHERE position BETWEEN ". $new_position . ' AND ' . ($position_initial - 1).' ORDER BY position ASC';
+		$sales_sql = "SELECT id_sale, position FROM "._DB_PREFIX_."privatesale WHERE position BETWEEN ". $new_position . ' AND ' . ($position_initial - 1).' AND lock_position = 0 ORDER BY position DESC';
 		$sales = Db::getInstance()->ExecuteS($sales_sql);
 	 	foreach ($sales as $key => $sale){
-	 		if(in_array($sale['id_sale'], $updated_sales)){
-	 			continue;
+	 		$pos = (int)$sale['position']+1;
+	 		while(in_array($pos, $lock_positions)){
+	 			$pos = $pos + 1;
 	 		}
+	 		$_positions[(int)$sale['id_sale']] = array(
+	 			'initial' => (int)$sale['position'],
+	 			'new' => $pos,
+	 		);
 
-	 		if((int)$sale['lock_position'] == 1){
-	 			$i = 1;
-	 			if(isset($sales[$key+1])){
-	 				$new_sale = $sales[$key+$i];
-	 				$updated_sales[] = (int)$new_sale['id_sale'];
-	 			}
-	 			while ($new_sale) {
-	 				$i++;
-	 				if((int)$new_sale['lock_position'] == 1){
-	 					if(isset($sales[$key+$i])) {
-	 						$new_sale = $sales[$key+$i];
-	 						$updated_sales[] = (int)$new_sale['id_sale'];
-	 					} else {
-	 						$new_sale = false;
-	 					}
-	 				} else {
-	 					Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = (position +'.$i.') WHERE id_sale = '. $new_sale['id_sale']);
-	 					$new_sale = false;
-	 				}
-	 			}
-	 		} else {
-	 			Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = (position + 1) WHERE id_sale = '. $sale['id_sale']);
-	 			$updated_sales[] = (int)$sale['id_sale'];
-	 		}
+	 		//Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = '.$position.' WHERE id_sale = '. $sale['id_sale']);
 	 	}
 	}
 
+	foreach ($_positions as $id => $value) {
+		Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = '. (int)$value['new'].' WHERE id_sale = '. $id);
+	}
+ // 	die(json_encode(array(
+	// 	"position" => $position,
+	// 	"position_initial" => $position_initial,
+	// 	"new_position" => $new_position,
+	// 	"sale_positions" => $_positions,
+	// )));
+
 	Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET position = '. (int)$new_position.' WHERE id_sale = '. $id_sale);
 
 	die();
diff --git a/modules/privatesales/AdminPrivateSalesSales.php b/modules/privatesales/AdminPrivateSalesSales.php
index cb943ade..51720919 100755
--- a/modules/privatesales/AdminPrivateSalesSales.php
+++ b/modules/privatesales/AdminPrivateSalesSales.php
@@ -930,6 +930,7 @@ class AdminPrivateSalesSales extends AdminTab {
                                         success: function(html) {
                                             var loader = "<p style=\"text-align:center\"><img style=\"display:inline-block;\" src=\"../img/loader_payment.gif\" /></p>";
                                             $(".list_vente").html(loader);
+
                                             ajax_query();
                                         }
                                     });
@@ -1055,6 +1056,11 @@ class AdminPrivateSalesSales extends AdminTab {
                                             <i class="glyphicon glyphicon-eye-open"></i> Voir Catégorie BO
                                         </a>
                                     </li>
+                                    <li>
+                                        <a style="cursor: pointer;" onclick="'.($sale->lock_position?'itemUnLockPosition('.$sale->id.')':'itemLockPosition('.$sale->id.')').'">
+                                            <span class="anticon anticon-lock"></span> '.($sale->lock_position?'Défixer':'Fixer').'  position
+                                        </a>
+                                    </li>
                                     <li role="separator" class="divider"></li>
                                     <li>
                                         <a style="cursor: pointer;" onclick="itemDeletion('.$sale->id.')">
@@ -1273,6 +1279,12 @@ class AdminPrivateSalesSales extends AdminTab {
         } elseif(isset($_GET['delete']) && $id_sale = Tools::getValue('id')) {
             Sale::deleteSale($id_sale);
             Tools::redirectAdmin($currentIndex.'&token='.Tools::getAdminTokenLite('AdminPrivateSalesSales'));
+        } elseif(isset($_GET['lock_position']) && $id_sale = Tools::getValue('id')) {
+            Sale::lockPosition($id_sale);
+            Tools::redirectAdmin($currentIndex.'&token='.Tools::getAdminTokenLite('AdminPrivateSalesSales'));
+        } elseif(isset($_GET['unlock_position']) && $id_sale = Tools::getValue('id')) {
+            Sale::unlockPosition($id_sale);
+            Tools::redirectAdmin($currentIndex.'&token='.Tools::getAdminTokenLite('AdminPrivateSalesSales'));
         }
     }
 }
diff --git a/modules/privatesales/Sale.php b/modules/privatesales/Sale.php
index 40b72846..d8f446ec 100755
--- a/modules/privatesales/Sale.php
+++ b/modules/privatesales/Sale.php
@@ -100,6 +100,7 @@ class Sale {
 					`id_employee` = '.(int) $this->id_employee.',
 					`shipping_fr` = '.(int) $this->shipping_fr.',
 					`delivery_delay` = '.(int) $this->delivery_delay.',
+					`lock_position` = '.(int) $this->lock_position.',
 					`date_upd` = NOW()
 				WHERE `id_sale` = '.(int) $this->id.'
 			');
@@ -284,6 +285,18 @@ class Sale {
 		}
 	}
 
+	public static function lockPosition($id) {
+		if($sale = Sale::getSale($id)) {
+			Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET lock_position = 1 WHERE id_sale = '. $id);
+		}
+	}
+
+	public static function unlockPosition($id) {
+		if($sale = Sale::getSale($id)) {
+			Db::getInstance()->ExecuteS( 'UPDATE '._DB_PREFIX_.'privatesale SET lock_position = 0 WHERE id_sale = '. $id);
+		}
+	}
+
 	public static function rrmdir($dir) {
 		if(is_dir($dir)) {
 			$objects = scandir($dir);
diff --git a/modules/privatesales/privatesale.js b/modules/privatesales/privatesale.js
index 3d3a6c75..6cb04f70 100755
--- a/modules/privatesales/privatesale.js
+++ b/modules/privatesales/privatesale.js
@@ -8,3 +8,9 @@ function itemDeletion(linkId) {
 		document.location.href = current_location + "&id=" + linkId + "&delete=1";
 	}
 }
+function itemLockPosition(linkId) {
+    document.location.href = current_location + "&id=" + linkId + "&lock_position=1";
+}
+function itemUnLockPosition(linkId) {
+    document.location.href = current_location + "&id=" + linkId + "&unlock_position=1";
+}