diff --git a/admin/class-informatiq-sp-admin.php b/admin/class-informatiq-sp-admin.php
index 2f01942c..112e2a66 100644
--- a/admin/class-informatiq-sp-admin.php
+++ b/admin/class-informatiq-sp-admin.php
@@ -840,47 +840,29 @@ class Informatiq_SP_Admin {
 			}
 
 			foreach ( $google_products_raw as $gp ) {
-				// Index by offerId (direct field).
+				// Index by offerId (top-level field).
 				if ( ! empty( $gp['offerId'] ) ) {
 					$google_products['offer_' . $gp['offerId']] = $gp;
 				}
 
-				// Index by gtin (direct field).
-				if ( ! empty( $gp['gtin'] ) ) {
-					$google_products['gtin_' . $gp['gtin']] = $gp;
-				}
-
-				// Also check nested attributes structure (new Merchant API format).
-				if ( ! empty( $gp['attributes']['offerId'] ) ) {
-					$google_products['offer_' . $gp['attributes']['offerId']] = $gp;
-				}
-				if ( ! empty( $gp['attributes']['gtin'] ) ) {
-					$google_products['gtin_' . $gp['attributes']['gtin']] = $gp;
-				}
-
-				// Check productId which might contain the identifier.
-				if ( ! empty( $gp['productId'] ) ) {
-					// productId format is usually: online:en:US:SKU or channel:language:country:offerId
-					$parts = explode( ':', $gp['productId'] );
-					if ( count( $parts ) >= 4 ) {
-						$extracted_offer = $parts[ count( $parts ) - 1 ];
-						$google_products['offer_' . $extracted_offer] = $gp;
+				// Index by GTIN - check attributes.gtin which is an ARRAY.
+				if ( ! empty( $gp['attributes']['gtin'] ) && is_array( $gp['attributes']['gtin'] ) ) {
+					foreach ( $gp['attributes']['gtin'] as $gtin_value ) {
+						$google_products['gtin_' . $gtin_value] = $gp;
 					}
 				}
 
-				// Check name field which contains full resource path.
-				if ( ! empty( $gp['name'] ) ) {
-					// name format: accounts/{account}/products/{product_id}
-					// product_id format: online~en~US~SKU
-					if ( preg_match( '/products\/(.+)$/', $gp['name'], $matches ) ) {
-						$product_id = $matches[1];
-						$parts = explode( '~', $product_id );
-						if ( count( $parts ) >= 4 ) {
-							$extracted_offer = $parts[ count( $parts ) - 1 ];
-							$google_products['offer_' . $extracted_offer] = $gp;
-						}
+				// Also check attributes.gtins (alternative field name).
+				if ( ! empty( $gp['attributes']['gtins'] ) && is_array( $gp['attributes']['gtins'] ) ) {
+					foreach ( $gp['attributes']['gtins'] as $gtin_value ) {
+						$google_products['gtin_' . $gtin_value] = $gp;
 					}
 				}
+
+				// Index by MPN if available.
+				if ( ! empty( $gp['attributes']['mpn'] ) ) {
+					$google_products['mpn_' . $gp['attributes']['mpn']] = $gp;
+				}
 			}
 
 			// Get WooCommerce in-stock products (limit to 50 for performance).
@@ -921,10 +903,12 @@ class Informatiq_SP_Admin {
 					$match_type     = 'gtin';
 				}
 
-				// Get Google price.
+				// Get Google price (nested in attributes in new Merchant API).
 				$google_price = null;
 				if ( $google_product ) {
-					if ( isset( $google_product['price']['amountMicros'] ) ) {
+					if ( isset( $google_product['attributes']['price']['amountMicros'] ) ) {
+						$google_price = (float) $google_product['attributes']['price']['amountMicros'] / 1000000;
+					} elseif ( isset( $google_product['price']['amountMicros'] ) ) {
 						$google_price = (float) $google_product['price']['amountMicros'] / 1000000;
 					}
 				}
diff --git a/includes/class-informatiq-sp-google-api.php b/includes/class-informatiq-sp-google-api.php
index ed52d439..ecfaf3a3 100644
--- a/includes/class-informatiq-sp-google-api.php
+++ b/includes/class-informatiq-sp-google-api.php
@@ -300,9 +300,16 @@ class Informatiq_SP_Google_API {
 			}
 
 			// Fallback: Use product's own price as reference.
+			// Price is nested inside attributes in the new Merchant API.
+			if ( isset( $product['attributes']['price']['amountMicros'] ) ) {
+				$price = (float) $product['attributes']['price']['amountMicros'] / 1000000;
+				$this->logger->warning( "No competitive data available for SKU={$sku}, using own price as reference" );
+				return $price;
+			}
+			// Also check top-level price (in case API changes).
 			if ( isset( $product['price']['amountMicros'] ) ) {
 				$price = (float) $product['price']['amountMicros'] / 1000000;
-				$this->logger->warning( "No competitive data available for SKU={$sku}, using own price as reference" );
+				$this->logger->warning( "No competitive data available for SKU={$sku}, using own price as reference (top-level)" );
 				return $price;
 			}
 
@@ -347,15 +354,31 @@ class Informatiq_SP_Google_API {
 							return $product;
 						}
 
-						// Check if SKU matches Google's GTIN (for stores where SKU is the barcode).
-						if ( isset( $product['gtin'] ) && $product['gtin'] === $sku ) {
-							$this->logger->info( "Product matched by GTIN={$sku} (SKU used as barcode)" );
-							return $product;
+						// Check if SKU matches Google's GTIN array (for stores where SKU is the barcode).
+						// GTIN is stored in attributes.gtin as an array.
+						if ( ! empty( $product['attributes']['gtin'] ) && is_array( $product['attributes']['gtin'] ) ) {
+							if ( in_array( $sku, $product['attributes']['gtin'], true ) ) {
+								$this->logger->info( "Product matched by attributes.gtin={$sku} (SKU used as barcode)" );
+								return $product;
+							}
 						}
 
-						// Check if separate GTIN field matches.
-						if ( ! empty( $gtin ) && isset( $product['gtin'] ) && $product['gtin'] === $gtin ) {
-							return $product;
+						// Also check attributes.gtins (alternative field).
+						if ( ! empty( $product['attributes']['gtins'] ) && is_array( $product['attributes']['gtins'] ) ) {
+							if ( in_array( $sku, $product['attributes']['gtins'], true ) ) {
+								$this->logger->info( "Product matched by attributes.gtins={$sku} (SKU used as barcode)" );
+								return $product;
+							}
+						}
+
+						// Check if separate GTIN parameter matches.
+						if ( ! empty( $gtin ) ) {
+							if ( ! empty( $product['attributes']['gtin'] ) && is_array( $product['attributes']['gtin'] ) ) {
+								if ( in_array( $gtin, $product['attributes']['gtin'], true ) ) {
+									$this->logger->info( "Product matched by GTIN parameter={$gtin}" );
+									return $product;
+								}
+							}
 						}
 					}
 				}