diff --git a/vendor/magento/module-catalog-import-export/Model/Import/Product/Validator/Backorders.php b/vendor/magento/module-catalog-import-export/Model/Import/Product/Validator/Backorders.php
new file mode 100644
index 0000000000000..23db673117b9d
--- /dev/null
+++ b/vendor/magento/module-catalog-import-export/Model/Import/Product/Validator/Backorders.php
@@ -0,0 +1,55 @@
+_clearMessages();
+ if (!isset($value['allow_backorders'])) {
+ return true;
+ }
+
+ $backorders = $value['allow_backorders'];
+ if (in_array($backorders, [$this->context->getEmptyAttributeValueConstant(), ''], true)) {
+ return true;
+ }
+
+ if (!is_numeric($backorders)) {
+ $messageTemplate = $this->context->retrieveMessageTemplate(self::ERROR_INVALID_ATTRIBUTE_TYPE);
+ $message = sprintf($messageTemplate, 'allow_backorders');
+ $this->_addMessages([$message]);
+ return false;
+ }
+
+ $allowedValues = array_column($this->backordersSource->toOptionArray(), 'label', 'value');
+ if (!isset($allowedValues[$backorders])) {
+ $messageTemplate = $this->context->retrieveMessageTemplate(self::ERROR_INVALID_ATTRIBUTE_OPTION);
+ $message = sprintf($messageTemplate, 'allow_backorders');
+ $this->_addMessages([$message]);
+ return false;
+ }
+
+ return true;
+ }
+}
diff --git a/vendor/magento/module-catalog-import-export/etc/di.xml b/vendor/magento/module-catalog-import-export/etc/di.xml
index 43fdda6227ac7..7447d73af539d 100644
--- a/vendor/magento/module-catalog-import-export/etc/di.xml
+++ b/vendor/magento/module-catalog-import-export/etc/di.xml
@@ -36,6 +36,7 @@
- Magento\CatalogImportExport\Model\Import\Product\Validator\Quantity
- Magento\CatalogImportExport\Model\Import\Product\Validator\LayoutUpdate
- Magento\CatalogImportExport\Model\Import\Product\Validator\LayoutUpdatePermissions
+ - Magento\CatalogImportExport\Model\Import\Product\Validator\Backorders