diff --git a/Core.php b/Core.php
index 1bd1dd7..9ad91f8 100644
--- a/Core.php
+++ b/Core.php
@@ -3932,6 +3932,12 @@ public function assignOffersItemInventories(ProductContract $internal_product, P
 		{
 			$internal_product->set_manage_stock(false);
 		}
+		else if('yes' === get_option('woocommerce_manage_stock'))
+		{
+			$this->log()->info(__('Stock is managed by variation product. Disable stock management of parent product.', 'wc1c-main'));
+			$internal_product_parent->set_manage_stock(false);
+			$internal_product_parent->save();
+		}
 
 		$product_quantity = $external_product->getQuantity();