diff --git a/UPGRADE-1.12.md b/UPGRADE-1.12.md
index c2f145511d..646ed7b4f0 100644
--- a/UPGRADE-1.12.md
+++ b/UPGRADE-1.12.md
@@ -7,6 +7,10 @@
 1. The default checkout resolving route pattern has been changed from `/checkout/.+` to
    `%sylius.security.shop_regex%/checkout/.+` to reduce the probability of conflicts with other routes.
 
+1. The `src/Sylius/Bundle/AdminBundle/Resources/views/Taxon/_treeWithButtons.html.twig` template has been updated to
+    implement new changing taxon's position logic. If you have overridden this template, you need to update it.
+    If you want to check what has changed, you might use [this PR](https://github.com/Sylius/Sylius/pull/15272) as a reference.
+
 # UPGRADE FROM `v1.12.9` TO `v1.12.10`
 
 1. The `Sylius\Component\Core\OrderProcessing\OrderPaymentProcessor` constructor has been changed:
diff --git a/config/packages/_sylius.yaml b/config/packages/_sylius.yaml
index dc5417459d..fa411e6185 100644
--- a/config/packages/_sylius.yaml
+++ b/config/packages/_sylius.yaml
@@ -11,7 +11,7 @@ parameters:
     sylius_core.public_dir: '%kernel.project_dir%/public'
 
 sylius_api:
-    enabled: false
+    enabled: true
 
 sylius_shop:
     product_grid:
diff --git a/docs/book/orders/cart-promotions.rst b/docs/book/orders/cart-promotions.rst
index 5702ec0bc8..790f138028 100644
--- a/docs/book/orders/cart-promotions.rst
+++ b/docs/book/orders/cart-promotions.rst
@@ -118,7 +118,7 @@ There are a few kinds of actions in **Sylius**:
 * percentage discount on the order (for example: -10% on the whole order)
 * fixed unit discount (for example: -1$ off the order total but *distributed and applied on each order item unit*)
 * percentage unit discount (for example: -10% off the order total but *distributed and applied on each order item unit*)
-* shipping discount (for example: -6$ on the costs of shipping)
+* shipping precentage discount (for example: -10% off the costs of shipping)
 
 .. tip::
 
diff --git a/features/taxonomy/managing_taxons/reordering_taxon.feature b/features/taxonomy/managing_taxons/reordering_taxon.feature
index 1e14969e9c..6c1772a7b0 100644
--- a/features/taxonomy/managing_taxons/reordering_taxon.feature
+++ b/features/taxonomy/managing_taxons/reordering_taxon.feature
@@ -24,6 +24,20 @@ Feature: Reordering taxons
         And I should see the taxon named "Watches" in the list
         But the first taxon on the list should be "Watches"
 
+    @ui @javascript
+    Scenario: Moving up the first taxon on list
+        When I want to see all taxons in store
+        And I move up "T-Shirts" taxon
+        Then I should see 4 taxons on the list
+        And the first taxon on the list should be "T-Shirts"
+
+    @ui @javascript
+    Scenario: Moving down the last taxon on list
+        When I want to see all taxons in store
+        And I move down "Wallets" taxon
+        Then I should see 4 taxons on the list
+        And the last taxon on the list should be "Wallets"
+
     @ui @javascript @todo
     Scenario: Changing order of the taxon on list
         When I want to see all taxons in store
diff --git a/src/Sylius/Behat/Context/Ui/Admin/ManagingTaxonsContext.php b/src/Sylius/Behat/Context/Ui/Admin/ManagingTaxonsContext.php
index b9fd13058e..3842a0db14 100644
--- a/src/Sylius/Behat/Context/Ui/Admin/ManagingTaxonsContext.php
+++ b/src/Sylius/Behat/Context/Ui/Admin/ManagingTaxonsContext.php
@@ -429,6 +429,14 @@ final class ManagingTaxonsContext implements Context
         Assert::same($this->createPage->getFirstTaxonOnTheList(), $taxonName);
     }
 
+    /**
+     * @Then the last taxon on the list should be :taxonName
+     */
+    public function theLastTaxonOnTheListShouldBe(string $taxonName): void
+    {
+        Assert::same($this->createPage->getLastTaxonOnTheList(), $taxonName);
+    }
+
     /**
      * @When I enable it
      */
diff --git a/src/Sylius/Behat/Page/Admin/Taxon/CreatePage.php b/src/Sylius/Behat/Page/Admin/Taxon/CreatePage.php
index 4b56b8888b..44b3b669bc 100644
--- a/src/Sylius/Behat/Page/Admin/Taxon/CreatePage.php
+++ b/src/Sylius/Behat/Page/Admin/Taxon/CreatePage.php
@@ -144,6 +144,13 @@ class CreatePage extends BaseCreatePage implements CreatePageInterface
         return $this->getLeaves()[0]->getText();
     }
 
+    public function getLastTaxonOnTheList(): string
+    {
+        $leaves = $this->getLeaves();
+
+        return $leaves[count($leaves) - 1]->getText();
+    }
+
     protected function getElement(string $name, array $parameters = []): NodeElement
     {
         if (!isset($parameters['%language%'])) {
diff --git a/src/Sylius/Behat/Page/Admin/Taxon/CreatePageInterface.php b/src/Sylius/Behat/Page/Admin/Taxon/CreatePageInterface.php
index c95477152c..2b17512979 100644
--- a/src/Sylius/Behat/Page/Admin/Taxon/CreatePageInterface.php
+++ b/src/Sylius/Behat/Page/Admin/Taxon/CreatePageInterface.php
@@ -52,4 +52,6 @@ interface CreatePageInterface extends BaseCreatePageInterface
     public function moveDownTaxon(string $name): void;
 
     public function getFirstTaxonOnTheList(): string;
+
+    public function getLastTaxonOnTheList(): string;
 }
diff --git a/src/Sylius/Bundle/AdminBundle/Resources/config/routing/ajax/taxon.yml b/src/Sylius/Bundle/AdminBundle/Resources/config/routing/ajax/taxon.yml
index f5f15b2456..0dc13c77a5 100644
--- a/src/Sylius/Bundle/AdminBundle/Resources/config/routing/ajax/taxon.yml
+++ b/src/Sylius/Bundle/AdminBundle/Resources/config/routing/ajax/taxon.yml
@@ -69,3 +69,21 @@ sylius_admin_ajax_taxon_move:
         _sylius:
             permission: true
             form: Sylius\Bundle\TaxonomyBundle\Form\Type\TaxonPositionType
+
+sylius_admin_ajax_taxon_move_up:
+    path: /{id}/move-up
+    methods: [PUT]
+    defaults:
+        _controller: sylius.controller.taxon_position::moveUpAction
+        _format: json
+        _sylius:
+            permission: true
+
+sylius_admin_ajax_taxon_move_down:
+    path: /{id}/move-down
+    methods: [PUT]
+    defaults:
+        _controller: sylius.controller.taxon_position::moveDownAction
+        _format: json
+        _sylius:
+            permission: true
diff --git a/src/Sylius/Bundle/AdminBundle/Resources/private/js/app.js b/src/Sylius/Bundle/AdminBundle/Resources/private/js/app.js
index bfbe6e4288..1735b49d17 100644
--- a/src/Sylius/Bundle/AdminBundle/Resources/private/js/app.js
+++ b/src/Sylius/Bundle/AdminBundle/Resources/private/js/app.js
@@ -54,8 +54,9 @@ $(document).ready(() => {
   });
 
   $('.sylius-update-product-variants').moveProductVariant($('.sylius-product-variant-position'));
-  $('.sylius-taxon-move-up').taxonMoveUp();
-  $('.sylius-taxon-move-down').taxonMoveDown();
+
+  $('.sylius-taxon-move-up').taxonMove();
+  $('.sylius-taxon-move-down').taxonMove();
 
   $('#sylius_shipping_method_calculator').handlePrototypes({
     prototypePrefix: 'sylius_shipping_method_calculator_calculators',
diff --git a/src/Sylius/Bundle/AdminBundle/Resources/private/js/sylius-move-taxon.js b/src/Sylius/Bundle/AdminBundle/Resources/private/js/sylius-move-taxon.js
index 7be2866a2c..c10bbaf156 100644
--- a/src/Sylius/Bundle/AdminBundle/Resources/private/js/sylius-move-taxon.js
+++ b/src/Sylius/Bundle/AdminBundle/Resources/private/js/sylius-move-taxon.js
@@ -11,40 +11,12 @@ import 'semantic-ui-css/components/api';
 import $ from 'jquery';
 
 $.fn.extend({
-  taxonMoveUp() {
+  taxonMove() {
     const element = this;
 
     element.api({
       method: 'PUT',
       on: 'click',
-      beforeSend(settings) {
-        /* eslint-disable-next-line no-param-reassign */
-        settings.data = {
-          position: $(this).data('position') - 1,
-        };
-
-        return settings;
-      },
-      onSuccess() {
-        window.location.reload();
-      },
-    });
-  },
-
-  taxonMoveDown() {
-    const element = this;
-
-    element.api({
-      method: 'PUT',
-      on: 'click',
-      beforeSend(settings) {
-        /* eslint-disable-next-line no-param-reassign */
-        settings.data = {
-          position: $(this).data('position') + 1,
-        };
-
-        return settings;
-      },
       onSuccess() {
         window.location.reload();
       },
diff --git a/src/Sylius/Bundle/AdminBundle/Resources/views/Taxon/_treeWithButtons.html.twig b/src/Sylius/Bundle/AdminBundle/Resources/views/Taxon/_treeWithButtons.html.twig
index 9b450d0e50..fe5492abe3 100644
--- a/src/Sylius/Bundle/AdminBundle/Resources/views/Taxon/_treeWithButtons.html.twig
+++ b/src/Sylius/Bundle/AdminBundle/Resources/views/Taxon/_treeWithButtons.html.twig
@@ -34,10 +34,10 @@
 
                                     <div class="divider"></div>
 
-                                    <div class="item sylius-taxon-move-up" data-url="{{ path('sylius_admin_ajax_taxon_move', { id: taxon.id }) }}" data-id="{{ taxon.id }}" data-position="{{ taxon.position }}">
+                                    <div class="item sylius-taxon-move-up" data-url="{{ path('sylius_admin_ajax_taxon_move_up', { id: taxon.id }) }}">
                                         <i class="arrow up icon grey"></i>{{ 'sylius.ui.move_up'|trans }}
                                     </div>
-                                    <div class="item sylius-taxon-move-down" data-url="{{ path('sylius_admin_ajax_taxon_move', { id: taxon.id }) }}" data-id="{{ taxon.id }}" data-position="{{ taxon.position }}">
+                                    <div class="item sylius-taxon-move-down" data-url="{{ path('sylius_admin_ajax_taxon_move_down', { id: taxon.id }) }}">
                                         <i class="arrow down icon grey"></i>{{ 'sylius.ui.move_down'|trans }}
                                     </div>
 
diff --git a/src/Sylius/Bundle/TaxonomyBundle/Controller/TaxonPositionController.php b/src/Sylius/Bundle/TaxonomyBundle/Controller/TaxonPositionController.php
new file mode 100644
index 0000000000..8dad118828
--- /dev/null
+++ b/src/Sylius/Bundle/TaxonomyBundle/Controller/TaxonPositionController.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Sylius Sp. z o.o.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Sylius\Bundle\TaxonomyBundle\Controller;
+
+use Doctrine\Persistence\ObjectManager;
+use Sylius\Component\Taxonomy\Model\TaxonInterface;
+use Sylius\Component\Taxonomy\Repository\TaxonRepositoryInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Webmozart\Assert\Assert;
+
+final class TaxonPositionController
+{
+    public function __construct(
+        private TaxonRepositoryInterface $taxonRepository,
+        private ObjectManager $taxonManager,
+    ) {
+    }
+
+    public function moveUpAction(int $id): Response
+    {
+        $taxonToBeMoved = $this->findTaxonOr404($id);
+
+        if ($taxonToBeMoved->getPosition() > 0) {
+            $taxonToBeMoved->setPosition($taxonToBeMoved->getPosition() - 1);
+            $this->taxonManager->flush();
+        }
+
+        return new JsonResponse('', Response::HTTP_NO_CONTENT);
+    }
+
+    public function moveDownAction(int $id): Response
+    {
+        $taxonToBeMoved = $this->findTaxonOr404($id);
+
+        $taxonToBeMoved->setPosition($taxonToBeMoved->getPosition() + 1);
+        $this->taxonManager->flush();
+
+        return new JsonResponse('', Response::HTTP_NO_CONTENT);
+    }
+
+    private function findTaxonOr404(int $id): TaxonInterface
+    {
+        /** @var TaxonInterface|null $taxon */
+        $taxon = $this->taxonRepository->find($id);
+
+        if (null === $taxon) {
+            throw new NotFoundHttpException(sprintf('Taxon with id %d does not exist.', $id));
+        }
+
+        Assert::isInstanceOf($taxon, TaxonInterface::class);
+
+        return $taxon;
+    }
+}
diff --git a/src/Sylius/Bundle/TaxonomyBundle/Resources/config/services.xml b/src/Sylius/Bundle/TaxonomyBundle/Resources/config/services.xml
index f27c592d3f..505e391180 100644
--- a/src/Sylius/Bundle/TaxonomyBundle/Resources/config/services.xml
+++ b/src/Sylius/Bundle/TaxonomyBundle/Resources/config/services.xml
@@ -26,6 +26,11 @@
             <argument type="service" id="sylius.factory.taxon" />
         </service>
 
+        <service id="sylius.controller.taxon_position" class="Sylius\Bundle\TaxonomyBundle\Controller\TaxonPositionController">
+            <argument type="service" id="sylius.repository.taxon" />
+            <argument type="service" id="sylius.manager.taxon" />
+        </service>
+
         <service id="sylius.custom_factory.taxon" class="Sylius\Component\Taxonomy\Factory\TaxonFactory" decorates="sylius.factory.taxon" decoration-priority="256" public="false">
             <argument type="service" id="sylius.custom_factory.taxon.inner" />
         </service>