diff --git a/vtex/loaders/orders/orderplaced.ts b/vtex/loaders/orders/orderplaced.ts
index 90308f7ab..8722645e2 100644
--- a/vtex/loaders/orders/orderplaced.ts
+++ b/vtex/loaders/orders/orderplaced.ts
@@ -11,6 +11,37 @@ interface Props {
   orderId: string;
 }
 
+/**
+ * Checkout cookies (CheckoutDataAccess + Vtex_CHKO_Auth) are set by VTEX right
+ * after an order is placed and are sufficient — and preferred — to access the
+ * order-placed page. The VtexIdclientAutCookie_* auth cookie can still be
+ * present in the browser even after it has expired, so sending it alongside the
+ * checkout cookies (or on its own when stale) causes the request to fail.
+ * Strategy: use checkout cookies when available; fall back to the auth cookie
+ * only when they are absent.
+ */
+function resolveOrderCookie(headers: Headers): string {
+  const all = getCookies(headers);
+
+  const checkoutCookies = Object.fromEntries(
+    Object.entries(all).filter(([key]) =>
+      key === CHECKOUT_DATA_ACCESS_COOKIE || key === VTEX_CHKO_AUTH
+    ),
+  );
+
+  if (Object.keys(checkoutCookies).length > 0) {
+    return stringify(checkoutCookies);
+  }
+
+  const authCookies = Object.fromEntries(
+    Object.entries(all).filter(([key]) =>
+      key.startsWith(VTEX_ID_CLIENT_COOKIE)
+    ),
+  );
+
+  return stringify(authCookies);
+}
+
 /**
  * @title Get Order Placed Order Details
  * @description Should be used on order placed page, the user must be authenticated or have access to the order through permissions or cookies
@@ -21,16 +52,7 @@ export default async function loader(
   ctx: AppContext,
 ) {
   const { vcsDeprecated } = ctx;
-  const cookies = Object.fromEntries(
-    Object.entries(getCookies(req.headers)).filter(([key]) =>
-      key.startsWith(VTEX_ID_CLIENT_COOKIE) ||
-      // these two cookies are set by VTEX after order is placed on checkout and are
-      // used to access the order placed page
-      key === CHECKOUT_DATA_ACCESS_COOKIE ||
-      key === VTEX_CHKO_AUTH
-    ),
-  );
-  const cookie = stringify(cookies);
+  const cookie = resolveOrderCookie(req.headers);
 
   const isOrderGroup = !orderId.includes("-");