Update app/code/core/Mage/Catalog/Helper/Product/Type/Composite.php

Co-authored-by: Copilot <[email protected]>

Author: empiricompany

app/code/core/Mage/Catalog/Helper/Product/Type/Composite.php

@@ -177,8 +177,13 @@ public function prepareJsonProductConfig($product)
         $_tierPrices = [];
         $_tierPricesInclTax = [];
         foreach ($product->getTierPrice() as $tierPrice) {
-            // Skip tier prices >= final price
-            if ((float) $tierPrice['website_price'] >= $_finalPrice) {
+            // Skip tier prices >= lower of final price or group price
+            $comparePrice = $_finalPrice;
+            $groupPrice = $product->getGroupPrice();
+            if ($groupPrice !== null && $groupPrice < $comparePrice) {
+                $comparePrice = $groupPrice;
+            }
+            if ((float) $tierPrice['website_price'] >= $comparePrice) {
                 continue;
             }