diff --git a/src/Core/Form/IdentifiableObject/CommandBuilder/Product/CustomizationFieldsCommandsBuilder.php b/src/Core/Form/IdentifiableObject/CommandBuilder/Product/CustomizationFieldsCommandsBuilder.php
index 5de266048478c..091ce84c86b48 100644
--- a/src/Core/Form/IdentifiableObject/CommandBuilder/Product/CustomizationFieldsCommandsBuilder.php
+++ b/src/Core/Form/IdentifiableObject/CommandBuilder/Product/CustomizationFieldsCommandsBuilder.php
@@ -74,7 +74,7 @@ private function buildCustomizationFields(array $customizationsFormData): array
                 'type' => (int) $customization['type'],
                 'localized_names' => $customization['name'],
                 'is_required' => (bool) $customization['required'],
-                'added_by_module' => false,
+                'added_by_module' => isset($customization['addedByModule']) ? (bool) $customization['addedByModule'] : false,
                 'id' => isset($customization['id']) ? (int) $customization['id'] : null,
             ];
         }
diff --git a/src/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProvider.php b/src/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProvider.php
index a228400cf156c..aa6e6d22c5b8b 100644
--- a/src/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProvider.php
+++ b/src/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProvider.php
@@ -616,6 +616,7 @@ private function extractCustomizationsData(ProductForEditing $productForEditing,
                 'name' => $customizationField->getLocalizedNames(),
                 'type' => $customizationField->getType(),
                 'required' => $customizationField->isRequired(),
+                'addedByModule' => $customizationField->isAddedByModule(),
             ];
         }
 
diff --git a/tests/Unit/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProviderTest.php b/tests/Unit/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProviderTest.php
index d578fc3796045..d8ff22595fb82 100644
--- a/tests/Unit/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProviderTest.php
+++ b/tests/Unit/Core/Form/IdentifiableObject/DataProvider/ProductFormDataProviderTest.php
@@ -1008,12 +1008,14 @@ private function getDatasetsForCustomizations(): array
                     'name' => $localizedNames,
                     'type' => 1,
                     'required' => false,
+                    'addedByModule' => false,
                 ],
                 [
                     'id' => 2,
                     'name' => $localizedNames,
                     'type' => 0,
                     'required' => true,
+                    'addedByModule' => false,
                 ],
             ],
         ];
@@ -1024,12 +1026,14 @@ private function getDatasetsForCustomizations(): array
                 'name' => $localizedNames,
                 'type' => CustomizationFieldType::TYPE_TEXT,
                 'required' => false,
+                'addedByModule' => false,
             ],
             [
                 'id' => 2,
                 'name' => $localizedNames,
                 'type' => CustomizationFieldType::TYPE_FILE,
                 'required' => true,
+                'addedByModule' => false,
             ],
         ];