diff --git a/ozon/products.go b/ozon/products.go
index 4f7da57..98f6546 100644
--- a/ozon/products.go
+++ b/ozon/products.go
@@ -30,7 +30,7 @@ type GetStocksInfoFilter struct {
 	OfferId []string `json:"offer_id,omitempty"`
 
 	// Filter by the product_id parameter. It is possible to pass a list of values
-	ProductId int64 `json:"product_id,omitempty"`
+	ProductId []int64 `json:"product_id,omitempty"`
 
 	// Filter by product visibility
 	Visibility string `json:"visibility,omitempty"`
@@ -246,6 +246,12 @@ type ProductDetails struct {
 
 	// Product volume weight
 	VolumeWeight float64 `json:"volume_weight"`
+
+	// 'true' if the item is archived manually.
+	IsArchived bool `json:"is_archived"`
+
+	// 'true' if the item is archived automatically.
+	IsArchivedAuto bool `json:"is_autoarchived"`
 }
 
 type ProductDetailCommission struct {
diff --git a/ozon/products_test.go b/ozon/products_test.go
index 56093f0..6512d1b 100644
--- a/ozon/products_test.go
+++ b/ozon/products_test.go
@@ -27,7 +27,7 @@ func TestGetStocksInfo(t *testing.T) {
 				LastId: "",
 				Filter: GetStocksInfoFilter{
 					OfferId:    []string{"136834"},
-					ProductId:  214887921,
+					ProductId:  []int64{214887921},
 					Visibility: "ALL",
 				},
 			},
@@ -251,7 +251,9 @@ func TestGetProductDetails(t *testing.T) {
 					  }
 					],
 					"state_updated_at": "2021-10-21T15:48:03.927309Z"
-				  }
+				  },
+					"is_archived": false,
+					"is_autoarchived": false
 				}
 			}`,
 		},