diff --git a/packages/core/core-flows/src/cart/utils/fields.ts b/packages/core/core-flows/src/cart/utils/fields.ts
index bb804db7f76a6..e02909074d072 100644
--- a/packages/core/core-flows/src/cart/utils/fields.ts
+++ b/packages/core/core-flows/src/cart/utils/fields.ts
@@ -108,8 +108,8 @@ export const productVariantsFields = [
   "product.description",
   "product.subtitle",
   "product.thumbnail",
-  "product.type",
-  "product.collection",
+  "product.type.value",
+  "product.collection.title",
   "product.handle",
   "product.discountable",
   "calculated_price.calculated_amount",
diff --git a/packages/core/core-flows/src/cart/utils/prepare-line-item-data.ts b/packages/core/core-flows/src/cart/utils/prepare-line-item-data.ts
index 291d8bbfc515f..a31e85279ee48 100644
--- a/packages/core/core-flows/src/cart/utils/prepare-line-item-data.ts
+++ b/packages/core/core-flows/src/cart/utils/prepare-line-item-data.ts
@@ -46,12 +46,9 @@ export function prepareLineItemData(data: Input) {
     product_description:
       variant.product.description ?? item?.product_description,
     product_subtitle: variant.product.subtitle ?? item?.product_subtitle,
-    product_type:
-      variant.product.type?.[0]?.value ?? item?.product_type ?? null,
+    product_type: variant.product.type?.value ?? item?.product_type ?? null,
     product_collection:
-      variant.product.collection?.[0]?.value ??
-      item?.product_collection ??
-      null,
+      variant.product.collection?.title ?? item?.product_collection ?? null,
     product_handle: variant.product.handle ?? item?.product_handle,
 
     variant_id: variant.id,
diff --git a/packages/core/core-flows/src/order/utils/fields.ts b/packages/core/core-flows/src/order/utils/fields.ts
index 5dfdc29b1743e..42f1e3a3a841b 100644
--- a/packages/core/core-flows/src/order/utils/fields.ts
+++ b/packages/core/core-flows/src/order/utils/fields.ts
@@ -10,8 +10,8 @@ export const productVariantsFields = [
   "product.description",
   "product.subtitle",
   "product.thumbnail",
-  "product.type",
-  "product.collection",
+  "product.type.value",
+  "product.collection.title",
   "product.handle",
   "calculated_price.calculated_amount",
   "inventory_items.inventory_item_id",