diff --git a/app/der-eine/page.tsx b/app/der-eine/page.tsx
index 29014a2..dc103c4 100644
--- a/app/der-eine/page.tsx
+++ b/app/der-eine/page.tsx
@@ -9,25 +9,24 @@ import { getProductBySlug, getCompanySettings } from "../lib/payload";
 import { buildProductSchema } from "../lib/structuredData";
 
 const title = "Der Eine. – Für die eine Sache, die gerade zählt.";
-const description =
-  "Der Eine. ist ein schlichter Kugelschreiber aus Metall. Angenehm in der Hand, klein genug für die Tasche und gemacht für alles, was kurz raus aus dem Kopf und irgendwo hin muss.";
 
-export const metadata: Metadata = {
-  title,
-  description,
-  alternates: {
-    canonical: "/der-eine",
-  },
-  openGraph: {
+// Description reads from the live product instead of a separately
+// hardcoded string, unlike this page's own `title` — matches
+// /tasse-die-pause's own pattern (see that page's comment). Two
+// hand-maintained copies of the same text used to drift apart: this one
+// used to say something different from Products.description (which feeds
+// the cart/checkout/JSON-LD elsewhere) — same field, one source now.
+export async function generateMetadata(): Promise<Metadata> {
+  const product = await getProductBySlug("stift-kugelschreiber");
+  const description = product?.description ?? undefined;
+  return {
     title,
     description,
-    url: "/der-eine",
-  },
-  twitter: {
-    title,
-    description,
-  },
-};
+    alternates: { canonical: "/der-eine" },
+    openGraph: { title, description, url: "/der-eine" },
+    twitter: { title, description },
+  };
+}
 
 export default async function DerEinePage() {
   const [product, seller] = await Promise.all([
diff --git a/app/lib/__tests__/cartTotals.test.ts b/app/lib/__tests__/cartTotals.test.ts
index 7423766..d264d29 100644
--- a/app/lib/__tests__/cartTotals.test.ts
+++ b/app/lib/__tests__/cartTotals.test.ts
@@ -7,6 +7,7 @@ const product = (overrides: Partial<Product> = {}): Product => ({
   numericId: 1,
   name: "ToDo-Karten",
   description: "",
+  sku: null,
   price: 12.9,
   compareAtPrice: null,
   image: "",
diff --git a/app/lib/payload.ts b/app/lib/payload.ts
index 5d58524..f100736 100644
--- a/app/lib/payload.ts
+++ b/app/lib/payload.ts
@@ -182,6 +182,10 @@ export type Product = {
   numericId: number;
   name: string;
   description: string;
+  // Not shown anywhere in the UI today — only consumed by
+  // buildProductSchema (JSON-LD's Product.sku), a real Schema.org property
+  // Google's rich-result validator looks for.
+  sku: string | null;
   price: number;
   compareAtPrice: number | null;
   image: string;
@@ -264,6 +268,7 @@ type PayloadProduct = {
   name: string;
   slug: string;
   description: string | null;
+  sku: string | null;
   price: number;
   compareAtPrice: number | null;
   image: { url: string } | number | null;
@@ -330,6 +335,7 @@ export function mapPayloadProduct(product: PayloadProduct): Product {
     numericId: product.id,
     name: product.name,
     description: product.description ?? "",
+    sku: product.sku || null,
     price: product.price,
     compareAtPrice: product.compareAtPrice ?? null,
     image: typeof product.image === "object" && product.image ? product.image.url : "",
diff --git a/app/lib/structuredData.ts b/app/lib/structuredData.ts
index 8a81194..94fe8dd 100644
--- a/app/lib/structuredData.ts
+++ b/app/lib/structuredData.ts
@@ -54,8 +54,9 @@ export function buildProductSchema(product: Product, url: string, seller: Compan
     "@type": "Product",
     name: product.name,
     description: product.description,
-    image: product.image,
+    image: product.gallery.length > 0 ? [product.image, ...product.gallery] : product.image,
     url,
+    ...(product.sku ? { sku: product.sku } : {}),
     // No reviews/ratings system exists yet — `aggregateRating` is
     // optional in the spec and deliberately omitted rather than faked;
     // add it here once real reviews exist, not before.