diff --git a/Model/Config/Backend/Credentials.php b/Model/Config/Backend/Credentials.php
index c212462..75fcc66 100644
--- a/Model/Config/Backend/Credentials.php
+++ b/Model/Config/Backend/Credentials.php
@@ -9,6 +9,7 @@
 use Cloudinary\Cloudinary\Core\Exception\InvalidCredentials;
 use Magento\Config\Model\Config\Backend\Encrypted;
 use Magento\Framework\App\Cache\TypeListInterface;
+use Magento\Framework\App\Config\ReinitableConfigInterface;
 use Magento\Framework\App\Config\ScopeConfigInterface;
 use Magento\Framework\Data\Collection\AbstractDb;
 use Magento\Framework\Encryption\EncryptorInterface;
@@ -39,6 +40,13 @@ class Credentials extends Encrypted
      */
     private $api;
 
+    /**
+     * Application config
+     *
+     * @var ScopeConfigInterface
+     */
+    protected $appConfig;
+
     /**
      * @param Context $context
      * @param Registry $registry
@@ -50,6 +58,7 @@ class Credentials extends Encrypted
      * @param AbstractDb $resourceCollection
      * @param ConfigurationBuilder $configurationBuilder
      * @param Api $api
+     * @param ReinitableConfigInterface $appConfig
      * @param array $data
      */
     public function __construct(
@@ -63,11 +72,13 @@ public function __construct(
         AbstractDb $resourceCollection = null,
         ConfigurationBuilder $configurationBuilder,
         Api $api,
+        ReinitableConfigInterface $appConfig,
         array $data = []
     ) {
         $this->configuration = $configuration;
         $this->configurationBuilder = $configurationBuilder;
         $this->api = $api;
+        $this->appConfig = $appConfig;
 
         parent::__construct(
             $context,
@@ -87,7 +98,13 @@ public function beforeSave()
 
         parent::beforeSave();
 
-        if ($rawValue) {
+        $this->cacheTypeList->cleanType(\Magento\Framework\App\Cache\Type\Config::TYPE_IDENTIFIER);
+        $this->appConfig->reinit();
+
+        if ($rawValue || $this->configuration->isEnabled(false)) {
+            if (!$rawValue) {
+                throw new ValidatorException(__(self::CREDENTIALS_CHECK_MISSING));
+            }
             if ($this->isSaveAllowed()) {
                 $this->validate($this->getCredentialsFromEnvironmentVariable($rawValue));
             } else {
diff --git a/Model/Configuration.php b/Model/Configuration.php
index aef7aa7..24d5eb1 100644
--- a/Model/Configuration.php
+++ b/Model/Configuration.php
@@ -173,9 +173,9 @@ public function getUploadConfig()
     /**
      * @return boolean
      */
-    public function isEnabled()
+    public function isEnabled($checkEnvVar = true)
     {
-        return $this->hasEnvironmentVariable() && $this->configReader->isSetFlag(self::CONFIG_PATH_ENABLED);
+        return ($this->hasEnvironmentVariable() || !$checkEnvVar) && $this->configReader->isSetFlag(self::CONFIG_PATH_ENABLED);
     }
 
     public function enable()