diff --git a/src/Form/DataTransformer/ContentElementDataTransformerChecker.php b/src/Form/DataTransformer/ContentElementDataTransformerChecker.php
new file mode 100644
index 00000000..93afe41a
--- /dev/null
+++ b/src/Form/DataTransformer/ContentElementDataTransformerChecker.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file was created by developers working at BitBag
+ * Do you need more information about us and what we do? Visit our https://bitbag.io website!
+ * We are hiring developers from all over the world. Join us and start your new, exciting adventure and become part of us: https://bitbag.io/career
+*/
+
+declare(strict_types=1);
+
+namespace BitBag\SyliusCmsPlugin\Form\DataTransformer;
+
+use Sylius\Component\Resource\Repository\RepositoryInterface;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
+
+final class ContentElementDataTransformerChecker
+{
+    public function check(FormBuilderInterface $builder, RepositoryInterface $repository, string $field): void
+    {
+        $builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) use ($repository, $field): void {
+            $data = $event->getData();
+            $code = $data[$field] ?? null;
+            $entity = $repository->findOneBy(['code' => $code]);
+            if (null === $entity) {
+                $data[$field] = null;
+                $event->setData($data);
+            }
+        });
+    }
+}
diff --git a/src/Form/Type/ContentElements/PagesCollectionContentElementType.php b/src/Form/Type/ContentElements/PagesCollectionContentElementType.php
index d076945e..a2ffc366 100644
--- a/src/Form/Type/ContentElements/PagesCollectionContentElementType.php
+++ b/src/Form/Type/ContentElements/PagesCollectionContentElementType.php
@@ -10,6 +10,7 @@
 
 namespace BitBag\SyliusCmsPlugin\Form\Type\ContentElements;
 
+use BitBag\SyliusCmsPlugin\Form\DataTransformer\ContentElementDataTransformerChecker;
 use BitBag\SyliusCmsPlugin\Form\Type\PageCollectionAutocompleteChoiceType;
 use Sylius\Bundle\ResourceBundle\Form\DataTransformer\ResourceToIdentifierTransformer;
 use Sylius\Component\Resource\Repository\RepositoryInterface;
@@ -21,8 +22,10 @@ final class PagesCollectionContentElementType extends AbstractType
 {
     public const TYPE = 'pages_collection';
 
-    public function __construct(private RepositoryInterface $collectionRepository)
-    {
+    public function __construct(
+        private RepositoryInterface $collectionRepository,
+        private ContentElementDataTransformerChecker $contentElementDataTransformerChecker,
+    ) {
     }
 
     public function buildForm(FormBuilderInterface $builder, array $options): void
@@ -36,6 +39,8 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
         $builder->get(self::TYPE)->addModelTransformer(
             new ReversedTransformer(new ResourceToIdentifierTransformer($this->collectionRepository, 'code')),
         );
+
+        $this->contentElementDataTransformerChecker->check($builder, $this->collectionRepository, self::TYPE);
     }
 
     public function getBlockPrefix(): string
diff --git a/src/Form/Type/ContentElements/ProductsCarouselByTaxonContentElementType.php b/src/Form/Type/ContentElements/ProductsCarouselByTaxonContentElementType.php
index aed6a44a..d39aa28f 100644
--- a/src/Form/Type/ContentElements/ProductsCarouselByTaxonContentElementType.php
+++ b/src/Form/Type/ContentElements/ProductsCarouselByTaxonContentElementType.php
@@ -10,6 +10,7 @@
 
 namespace BitBag\SyliusCmsPlugin\Form\Type\ContentElements;
 
+use BitBag\SyliusCmsPlugin\Form\DataTransformer\ContentElementDataTransformerChecker;
 use Sylius\Bundle\ResourceBundle\Form\DataTransformer\ResourceToIdentifierTransformer;
 use Sylius\Bundle\TaxonomyBundle\Form\Type\TaxonAutocompleteChoiceType;
 use Sylius\Component\Resource\Repository\RepositoryInterface;
@@ -21,8 +22,10 @@ final class ProductsCarouselByTaxonContentElementType extends AbstractType
 {
     public const TYPE = 'products_carousel_by_taxon';
 
-    public function __construct(private RepositoryInterface $taxonRepository)
-    {
+    public function __construct(
+        private RepositoryInterface $taxonRepository,
+        private ContentElementDataTransformerChecker $contentElementDataTransformerChecker,
+    ) {
     }
 
     public function buildForm(FormBuilderInterface $builder, array $options): void
@@ -38,6 +41,8 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
         $builder->get(self::TYPE)->addModelTransformer(
             new ReversedTransformer(new ResourceToIdentifierTransformer($this->taxonRepository, 'code')),
         );
+
+        $this->contentElementDataTransformerChecker->check($builder, $this->taxonRepository, self::TYPE);
     }
 
     public function getBlockPrefix(): string
diff --git a/src/Form/Type/ContentElements/ProductsGridByTaxonContentElementType.php b/src/Form/Type/ContentElements/ProductsGridByTaxonContentElementType.php
index 9721f89d..66cc543f 100644
--- a/src/Form/Type/ContentElements/ProductsGridByTaxonContentElementType.php
+++ b/src/Form/Type/ContentElements/ProductsGridByTaxonContentElementType.php
@@ -10,6 +10,7 @@
 
 namespace BitBag\SyliusCmsPlugin\Form\Type\ContentElements;
 
+use BitBag\SyliusCmsPlugin\Form\DataTransformer\ContentElementDataTransformerChecker;
 use Sylius\Bundle\ResourceBundle\Form\DataTransformer\ResourceToIdentifierTransformer;
 use Sylius\Bundle\TaxonomyBundle\Form\Type\TaxonAutocompleteChoiceType;
 use Sylius\Component\Resource\Repository\RepositoryInterface;
@@ -21,8 +22,10 @@ final class ProductsGridByTaxonContentElementType extends AbstractType
 {
     public const TYPE = 'products_grid_by_taxon';
 
-    public function __construct(private RepositoryInterface $taxonRepository)
-    {
+    public function __construct(
+        private RepositoryInterface $taxonRepository,
+        private ContentElementDataTransformerChecker $contentElementDataTransformerChecker,
+    ) {
     }
 
     public function buildForm(FormBuilderInterface $builder, array $options): void
@@ -38,6 +41,8 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
         $builder->get(self::TYPE)->addModelTransformer(
             new ReversedTransformer(new ResourceToIdentifierTransformer($this->taxonRepository, 'code')),
         );
+
+        $this->contentElementDataTransformerChecker->check($builder, $this->taxonRepository, self::TYPE);
     }
 
     public function getBlockPrefix(): string
diff --git a/src/Form/Type/ContentElements/SingleMediaContentElementType.php b/src/Form/Type/ContentElements/SingleMediaContentElementType.php
index e761c4a7..8fdd7075 100644
--- a/src/Form/Type/ContentElements/SingleMediaContentElementType.php
+++ b/src/Form/Type/ContentElements/SingleMediaContentElementType.php
@@ -10,6 +10,7 @@
 
 namespace BitBag\SyliusCmsPlugin\Form\Type\ContentElements;
 
+use BitBag\SyliusCmsPlugin\Form\DataTransformer\ContentElementDataTransformerChecker;
 use BitBag\SyliusCmsPlugin\Form\Type\MediaAutocompleteChoiceType;
 use Sylius\Bundle\ResourceBundle\Form\DataTransformer\ResourceToIdentifierTransformer;
 use Sylius\Component\Resource\Repository\RepositoryInterface;
@@ -21,8 +22,10 @@ final class SingleMediaContentElementType extends AbstractType
 {
     public const TYPE = 'single_media';
 
-    public function __construct(private RepositoryInterface $mediaRepository)
-    {
+    public function __construct(
+        private RepositoryInterface $mediaRepository,
+        private ContentElementDataTransformerChecker $contentElementDataTransformerChecker,
+    ) {
     }
 
     public function buildForm(FormBuilderInterface $builder, array $options): void
@@ -36,6 +39,8 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
         $builder->get(self::TYPE)->addModelTransformer(
             new ReversedTransformer(new ResourceToIdentifierTransformer($this->mediaRepository, 'code')),
         );
+
+        $this->contentElementDataTransformerChecker->check($builder, $this->mediaRepository, self::TYPE);
     }
 
     public function getBlockPrefix(): string
diff --git a/src/Resources/config/services/form.xml b/src/Resources/config/services/form.xml
index 5c917166..799016e5 100644
--- a/src/Resources/config/services/form.xml
+++ b/src/Resources/config/services/form.xml
@@ -96,12 +96,13 @@
 
         <service id="bitbag_sylius_cms_plugin.form.type.content_element.single_media" class="BitBag\SyliusCmsPlugin\Form\Type\ContentElements\SingleMediaContentElementType">
             <argument type="service" id="bitbag_sylius_cms_plugin.repository.media" />
+            <argument type="service" id="bitbag_sylius_cms_plugin.form.data_transformer.content_element_checker" />
             <tag name="bitbag_sylius_cms_plugin.content_elements.type" key="%bitbag_sylius_cms_plugin.content_elements.type.single_media%" />
             <tag name="form.type" />
         </service>
 
         <service id="bitbag_sylius_cms_plugin.form.type.content_element.multiple_media" class="BitBag\SyliusCmsPlugin\Form\Type\ContentElements\MultipleMediaContentElementType">
-            <argument type="service" id="bitbag_sylius_cms_plugin.form.type.data_transformer.multiple_media_to_codes" />
+            <argument type="service" id="bitbag_sylius_cms_plugin.form.data_transformer.multiple_media_to_codes" />
             <tag name="bitbag_sylius_cms_plugin.content_elements.type" key="%bitbag_sylius_cms_plugin.content_elements.type.multiple_media%" />
             <tag name="form.type" />
         </service>
@@ -118,6 +119,7 @@
 
         <service id="bitbag_sylius_cms_plugin.form.type.content_element.products_carousel_by_taxon" class="BitBag\SyliusCmsPlugin\Form\Type\ContentElements\ProductsCarouselByTaxonContentElementType">
             <argument type="service" id="sylius.repository.taxon" />
+            <argument type="service" id="bitbag_sylius_cms_plugin.form.data_transformer.content_element_checker" />
             <tag name="bitbag_sylius_cms_plugin.content_elements.type" key="%bitbag_sylius_cms_plugin.content_elements.type.products_carousel_by_taxon%" />
             <tag name="form.type" />
         </service>
@@ -129,6 +131,7 @@
 
         <service id="bitbag_sylius_cms_plugin.form.type.content_element.products_grid_by_taxon" class="BitBag\SyliusCmsPlugin\Form\Type\ContentElements\ProductsGridByTaxonContentElementType">
             <argument type="service" id="sylius.repository.taxon" />
+            <argument type="service" id="bitbag_sylius_cms_plugin.form.data_transformer.content_element_checker" />
             <tag name="bitbag_sylius_cms_plugin.content_elements.type" key="%bitbag_sylius_cms_plugin.content_elements.type.products_grid_by_taxon%" />
             <tag name="form.type" />
         </service>
@@ -140,6 +143,7 @@
 
         <service id="bitbag_sylius_cms_plugin.form.type.content_element.pages_collection" class="BitBag\SyliusCmsPlugin\Form\Type\ContentElements\PagesCollectionContentElementType">
             <argument type="service" id="bitbag_sylius_cms_plugin.repository.collection" />
+            <argument type="service" id="bitbag_sylius_cms_plugin.form.data_transformer.content_element_checker" />
             <tag name="bitbag_sylius_cms_plugin.content_elements.type" key="%bitbag_sylius_cms_plugin.content_elements.type.pages_collection%" />
             <tag name="form.type" />
         </service>
@@ -149,9 +153,11 @@
             <tag name="form.type" />
         </service>
 
-        <service id="bitbag_sylius_cms_plugin.form.type.data_transformer.multiple_media_to_codes" class="BitBag\SyliusCmsPlugin\Form\DataTransformer\MultipleMediaToCodesTransformer">
+        <service id="bitbag_sylius_cms_plugin.form.data_transformer.multiple_media_to_codes" class="BitBag\SyliusCmsPlugin\Form\DataTransformer\MultipleMediaToCodesTransformer">
             <argument type="service" id="bitbag_sylius_cms_plugin.repository.media" />
         </service>
+
+        <service id="bitbag_sylius_cms_plugin.form.data_transformer.content_element_checker" class="BitBag\SyliusCmsPlugin\Form\DataTransformer\ContentElementDataTransformerChecker"/>
     </services>
 
 </container>