diff --git a/app/code/Magento/Catalog/Model/ResourceModel/AbstractResource.php b/app/code/Magento/Catalog/Model/ResourceModel/AbstractResource.php
index 6614b10ef609e..1e55bd35553ab 100644
--- a/app/code/Magento/Catalog/Model/ResourceModel/AbstractResource.php
+++ b/app/code/Magento/Catalog/Model/ResourceModel/AbstractResource.php
@@ -9,10 +9,6 @@
 namespace Magento\Catalog\Model\ResourceModel;
 
 use Magento\Eav\Model\Entity\Attribute\AbstractAttribute;
-use Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend;
-use Magento\Eav\Model\Entity\Attribute\Frontend\AbstractFrontend;
-use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;
-use Magento\Eav\Model\Entity\Attribute\UniqueValidationInterface;
 
 /**
  * Catalog entity abstract model
@@ -43,18 +39,16 @@ abstract class AbstractResource extends \Magento\Eav\Model\Entity\AbstractEntity
      * @param \Magento\Store\Model\StoreManagerInterface $storeManager
      * @param \Magento\Catalog\Model\Factory $modelFactory
      * @param array $data
-     * @param UniqueValidationInterface|null $uniqueValidator
      */
     public function __construct(
         \Magento\Eav\Model\Entity\Context $context,
         \Magento\Store\Model\StoreManagerInterface $storeManager,
         \Magento\Catalog\Model\Factory $modelFactory,
-        $data = [],
-        UniqueValidationInterface $uniqueValidator = null
+        $data = []
     ) {
         $this->_storeManager = $storeManager;
         $this->_modelFactory = $modelFactory;
-        parent::__construct($context, $data, $uniqueValidator);
+        parent::__construct($context, $data);
     }
 
     /**
@@ -94,7 +88,7 @@ protected function _isApplicableAttribute($object, $attribute)
     /**
      * Check whether attribute instance (attribute, backend, frontend or source) has method and applicable
      *
-     * @param AbstractAttribute|AbstractBackend|AbstractFrontend|AbstractSource $instance
+     * @param AbstractAttribute|\Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend|\Magento\Eav\Model\Entity\Attribute\Frontend\AbstractFrontend|\Magento\Eav\Model\Entity\Attribute\Source\AbstractSource $instance
      * @param string $method
      * @param array $args array of arguments
      * @return boolean
diff --git a/app/code/Magento/Catalog/Model/ResourceModel/Product.php b/app/code/Magento/Catalog/Model/ResourceModel/Product.php
index e438e2f54113d..95f09c7ee80be 100644
--- a/app/code/Magento/Catalog/Model/ResourceModel/Product.php
+++ b/app/code/Magento/Catalog/Model/ResourceModel/Product.php
@@ -8,7 +8,6 @@
 use Magento\Catalog\Model\ResourceModel\Product\Website\Link as ProductWebsiteLink;
 use Magento\Framework\App\ObjectManager;
 use Magento\Catalog\Model\Indexer\Category\Product\TableMaintainer;
-use Magento\Eav\Model\Entity\Attribute\UniqueValidationInterface;
 
 /**
  * Product entity resource model
@@ -102,7 +101,6 @@ class Product extends AbstractResource
      * @param \Magento\Catalog\Model\Product\Attribute\DefaultAttributes $defaultAttributes
      * @param array $data
      * @param TableMaintainer|null $tableMaintainer
-     * @param UniqueValidationInterface|null $uniqueValidator
      *
      * @SuppressWarnings(PHPMD.ExcessiveParameterList)
      */
@@ -117,8 +115,7 @@ public function __construct(
         \Magento\Eav\Model\Entity\TypeFactory $typeFactory,
         \Magento\Catalog\Model\Product\Attribute\DefaultAttributes $defaultAttributes,
         $data = [],
-        TableMaintainer $tableMaintainer = null,
-        UniqueValidationInterface $uniqueValidator = null
+        TableMaintainer $tableMaintainer = null
     ) {
         $this->_categoryCollectionFactory = $categoryCollectionFactory;
         $this->_catalogCategory = $catalogCategory;
@@ -130,8 +127,7 @@ public function __construct(
             $context,
             $storeManager,
             $modelFactory,
-            $data,
-            $uniqueValidator
+            $data
         );
         $this->connectionName  = 'catalog';
         $this->tableMaintainer = $tableMaintainer ?: ObjectManager::getInstance()->get(TableMaintainer::class);
@@ -661,7 +657,7 @@ public function save(\Magento\Framework\Model\AbstractModel $object)
     }
 
     /**
-     * Retrieve entity manager object.
+     * Retrieve entity manager object
      *
      * @return \Magento\Framework\EntityManager\EntityManager
      */
@@ -675,7 +671,7 @@ private function getEntityManager()
     }
 
     /**
-     * Retrieve ProductWebsiteLink object.
+     * Retrieve ProductWebsiteLink object
      *
      * @deprecated 101.1.0
      * @return ProductWebsiteLink
@@ -686,7 +682,7 @@ private function getProductWebsiteLink()
     }
 
     /**
-     * Retrieve CategoryLink object.
+     * Retrieve CategoryLink object
      *
      * @deprecated 101.1.0
      * @return \Magento\Catalog\Model\ResourceModel\Product\CategoryLink
@@ -702,7 +698,6 @@ private function getProductCategoryLink()
 
     /**
      * Extends parent method to be appropriate for product.
-     *
      * Store id is required to correctly identify attribute value we are working with.
      *
      * @inheritdoc
diff --git a/app/code/Magento/Catalog/Test/Mftf/Test/AdminCheckingAttributeValueOnProductEditPageTest.xml b/app/code/Magento/Catalog/Test/Mftf/Test/AdminCheckingAttributeValueOnProductEditPageTest.xml
index 59ac446d7a608..bd49f643148d9 100644
--- a/app/code/Magento/Catalog/Test/Mftf/Test/AdminCheckingAttributeValueOnProductEditPageTest.xml
+++ b/app/code/Magento/Catalog/Test/Mftf/Test/AdminCheckingAttributeValueOnProductEditPageTest.xml
@@ -52,6 +52,7 @@
 
         <!--Go to Product edit page-->
         <amOnPage url="{{AdminProductEditPage.url($$createSimpleProduct.id$$)}}" stepKey="goToProductEditPage"/>
+        <waitForPageLoad stepKey="waitForPageLoad"/>
         <!--Click on attribute dropdown-->
         <click selector="{{AdminProductFormSection.customAttributeDropdownField($$createDropdownProductAttribute.attribute[attribute_code]$$)}}" stepKey="clickOnAttributeDropdown"/>
         <!--Check attribute dropdown options-->
diff --git a/app/code/Magento/Eav/Model/Entity/AbstractEntity.php b/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
index 7f6734b8b6b60..9b7abde37cc19 100644
--- a/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
+++ b/app/code/Magento/Eav/Model/Entity/AbstractEntity.php
@@ -12,7 +12,6 @@
 use Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend;
 use Magento\Eav\Model\Entity\Attribute\Frontend\AbstractFrontend;
 use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;
-use Magento\Eav\Model\Entity\Attribute\UniqueValidationInterface;
 use Magento\Framework\App\Config\Element;
 use Magento\Framework\DataObject;
 use Magento\Framework\DB\Adapter\DuplicateException;
@@ -218,21 +217,12 @@ abstract class AbstractEntity extends AbstractResource implements EntityInterfac
      */
     protected $objectRelationProcessor;
 
-    /**
-     * @var UniqueValidationInterface
-     */
-    private $uniqueValidator;
-
     /**
      * @param Context $context
      * @param array $data
-     * @param UniqueValidationInterface|null $uniqueValidator
      */
-    public function __construct(
-        Context $context,
-        $data = [],
-        UniqueValidationInterface $uniqueValidator = null
-    ) {
+    public function __construct(Context $context, $data = [])
+    {
         $this->_eavConfig = $context->getEavConfig();
         $this->_resource = $context->getResource();
         $this->_attrSetEntity = $context->getAttributeSetEntity();
@@ -241,8 +231,6 @@ public function __construct(
         $this->_universalFactory = $context->getUniversalFactory();
         $this->transactionManager = $context->getTransactionManager();
         $this->objectRelationProcessor = $context->getObjectRelationProcessor();
-        $this->uniqueValidator = $uniqueValidator ?:
-            ObjectManager::getInstance()->get(UniqueValidationInterface::class);
         parent::__construct();
         $properties = get_object_vars($this);
         foreach ($data as $key => $value) {
@@ -511,7 +499,6 @@ public function addAttributeByScope(AbstractAttribute $attribute, $entity = null
     /**
      * Get attributes by scope
      *
-     * @param string $suffix
      * @return array
      */
     private function getAttributesByScope($suffix)
@@ -982,8 +969,12 @@ public function checkAttributeUniqueValue(AbstractAttribute $attribute, $object)
 
         $data = $connection->fetchCol($select, $bind);
 
-        if ($object->getData($entityIdField)) {
-            return $this->uniqueValidator->validate($attribute, $object, $this, $entityIdField, $data);
+        $objectId = $object->getData($entityIdField);
+        if ($objectId) {
+            if (isset($data[0])) {
+                return $data[0] == $objectId;
+            }
+            return true;
         }
 
         return !count($data);
@@ -1995,7 +1986,6 @@ public function afterDelete(DataObject $object)
 
     /**
      * Load attributes for object
-     *
      * If the object will not pass all attributes for this entity type will be loaded
      *
      * @param array $attributes
diff --git a/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidationInterface.php b/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidationInterface.php
deleted file mode 100644
index 50a6ff9329fc9..0000000000000
--- a/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidationInterface.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-/**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
- */
-declare(strict_types=1);
-
-namespace Magento\Eav\Model\Entity\Attribute;
-
-use Magento\Framework\DataObject;
-use Magento\Eav\Model\Entity\AbstractEntity;
-
-/**
- * Interface for unique attribute validator.
- */
-interface UniqueValidationInterface
-{
-    /**
-     * Validate if attribute value is unique.
-     *
-     * @param AbstractAttribute $attribute
-     * @param DataObject $object
-     * @param AbstractEntity $entity
-     * @param string $entityLinkField
-     * @param array $entityIds
-     * @return bool
-     */
-    public function validate(
-        AbstractAttribute $attribute,
-        DataObject $object,
-        AbstractEntity $entity,
-        string $entityLinkField,
-        array $entityIds
-    ): bool;
-}
diff --git a/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidator.php b/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidator.php
deleted file mode 100644
index 9aa501daf1584..0000000000000
--- a/app/code/Magento/Eav/Model/Entity/Attribute/UniqueValidator.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-/**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
- */
-declare(strict_types=1);
-
-namespace Magento\Eav\Model\Entity\Attribute;
-
-use Magento\Framework\DataObject;
-use Magento\Eav\Model\Entity\AbstractEntity;
-
-/**
- * Class for validate unique attribute value.
- */
-class UniqueValidator implements UniqueValidationInterface
-{
-    /**
-     * @inheritdoc
-     */
-    public function validate(
-        AbstractAttribute $attribute,
-        DataObject $object,
-        AbstractEntity $entity,
-        string $entityLinkField,
-        array $entityIds
-    ): bool {
-        if (isset($entityIds[0])) {
-            return $entityIds[0] == $object->getData($entityLinkField);
-        }
-
-        return true;
-    }
-}
diff --git a/app/code/Magento/Eav/etc/di.xml b/app/code/Magento/Eav/etc/di.xml
index 92c1ef11b9c1f..c8afd10aa3eee 100644
--- a/app/code/Magento/Eav/etc/di.xml
+++ b/app/code/Magento/Eav/etc/di.xml
@@ -8,7 +8,6 @@
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
     <preference for="Magento\Eav\Model\Entity\Setup\PropertyMapperInterface" type="Magento\Eav\Model\Entity\Setup\PropertyMapper\Composite" />
     <preference for="Magento\Eav\Model\Entity\AttributeLoaderInterface" type="Magento\Eav\Model\Entity\AttributeLoader" />
-    <preference for="Magento\Eav\Model\Entity\Attribute\UniqueValidationInterface" type="Magento\Eav\Model\Entity\Attribute\UniqueValidator" />
     <preference for="Magento\Eav\Api\Data\AttributeInterface" type="Magento\Eav\Model\Entity\Attribute" />
     <preference for="Magento\Eav\Api\AttributeRepositoryInterface" type="Magento\Eav\Model\AttributeRepository" />
     <preference for="Magento\Eav\Api\Data\AttributeGroupInterface" type="Magento\Eav\Model\Entity\Attribute\Group" />