diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27e7fc1c76..795800c7ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [UNRELEASED]
+
+### Added
+- Add grouped actions to link consumables and related items
+
 ## [2.12.8] - 2026-06-24
 
 ### Added
diff --git a/inc/link.class.php b/inc/link.class.php
index 8209d5ae94..5468350fb4 100644
--- a/inc/link.class.php
+++ b/inc/link.class.php
@@ -633,7 +633,17 @@ public static function processMassiveActionsForOneItemtype(
                 break;
 
             case 'createLink':
-                if (count($ids) > 1) {
+                //  For consumables and cartridges, createLinkWithItem creates a new item
+                // (glpi_consumables/glpi_cartridges) for each selected detail line;
+                // therefore, multiple items can be linked to the same reference item at once
+                $first_item_data = reset($ma->POST['add_items']);
+                $allow_multiple_link = is_array($first_item_data) && in_array(
+                    $first_item_data['itemtype'] ?? '',
+                    ['ConsumableItem', 'CartridgeItem'],
+                    true,
+                );
+
+                if (!$allow_multiple_link && count($ids) > 1) {
                     $ma->addMessage(__s("Cannot link several items to one detail line", "order"));
                     foreach ($ids as $id) {
                         $ma->itemDone($item->getType(), $id, MassiveAction::ACTION_KO);
diff --git a/inc/order.class.php b/inc/order.class.php
index c3fafe8757..15f6e1be35 100644
--- a/inc/order.class.php
+++ b/inc/order.class.php
@@ -1825,7 +1825,6 @@ public function generateOrder($params)
             $this->getFromDB($ID);
 
             if (file_exists(PLUGIN_ORDER_TEMPLATE_CUSTOM_DIR . "custom.php")) {
-                // @phpstan-ignore-next-line: custom.php is not a file or it does not exist.
                 include_once(PLUGIN_ORDER_TEMPLATE_CUSTOM_DIR . "custom.php");
             }