diff --git a/App/CLAUDE.md b/App/CLAUDE.md
index 4213e2a..008a3c6 100644
--- a/App/CLAUDE.md
+++ b/App/CLAUDE.md
@@ -132,6 +132,10 @@ The pipeline (no mailto attachment — `mailto:` can't carry files): `prepareVen
 
 Inventory (`ItemInventory`, keyed by `productId` + `siteId`) is **incremented at PO approval** — not on close — for the ordered quantities, when the PO has a `siteId`. The whole inventory surface (site stock, consumption) is gated by `NEXT_PUBLIC_INVENTORY_ENABLED` (see `lib/feature-flags.ts`); the vendor/product catalogue used for PO creation stays available regardless.
 
+### Product catalogue sync (`lib/product-catalog.ts`)
+
+`syncProductCatalog(poId, lineItems, vendorId, actorId)` registers a PO's line items as reusable **`Product`s** (the `/inventory/items` catalogue): a line item with no `productId` is matched to an existing product by name (case-insensitive) or a new product is created, then the line item is linked back; `lastPrice`/`lastVendorId` and the per-vendor `ProductVendorPrice` are upserted. It runs **at approval** (`approvePo`) so an approved PO's items are immediately reusable in further POs, **and again at full payment** (`markPaid`) to refresh prices on the final figures. Idempotent — re-running matches the same product. (Import takes its own auto-create path.)
+
 ### Import → Closed
 
 `/po/import` parses a Pelagia-format Excel PO and saves it **directly as `CLOSED`** (historical record, bypasses approval). It auto-detects the company (by header/code), auto-matches the vessel by code, **auto-creates the vendor and any unknown products**, and upserts per-vendor prices.
diff --git a/App/app/(portal)/approvals/[id]/actions.ts b/App/app/(portal)/approvals/[id]/actions.ts
index 4c04098..0d9d288 100644
--- a/App/app/(portal)/approvals/[id]/actions.ts
+++ b/App/app/(portal)/approvals/[id]/actions.ts
@@ -4,6 +4,7 @@ import { auth } from "@/auth";
 import { db } from "@/lib/db";
 import { canPerformAction } from "@/lib/po-state-machine";
 import { approvePoSchema } from "@/lib/validations/po";
+import { syncProductCatalog } from "@/lib/product-catalog";
 import { notify } from "@/lib/notifier";
 import { revalidatePath } from "next/cache";
 
@@ -84,6 +85,12 @@ export async function approvePo({
     revalidatePath(`/admin/sites/${siteId}`);
   }
 
+  // Register the line items in the product catalogue (/inventory/items) on
+  // approval, so an approved PO's items are immediately reusable in further POs.
+  // Idempotent; payment re-syncs to refresh prices on the final figures.
+  await syncProductCatalog(poId, po.lineItems, po.vendorId, session.user.id);
+  revalidatePath("/inventory/items");
+
   const accounts = await db.user.findMany({ where: { role: "ACCOUNTS", isActive: true } });
   await notify({
     event: withNote ? "PO_APPROVED_WITH_NOTE" : "PO_APPROVED",
diff --git a/App/app/(portal)/payments/actions.ts b/App/app/(portal)/payments/actions.ts
index 2e9f547..dc2092a 100644
--- a/App/app/(portal)/payments/actions.ts
+++ b/App/app/(portal)/payments/actions.ts
@@ -4,107 +4,12 @@ import { auth } from "@/auth";
 import { db } from "@/lib/db";
 import { canPerformAction } from "@/lib/po-state-machine";
 import { processPaymentSchema } from "@/lib/validations/po";
+import { syncProductCatalog } from "@/lib/product-catalog";
 import { notify } from "@/lib/notifier";
 import { revalidatePath } from "next/cache";
 
 type ActionResult = { ok: true } | { error: string };
 
-function nameToCode(name: string): string {
-  const slug = name.toUpperCase()
-    .replace(/[^A-Z0-9]+/g, "-")
-    .replace(/^-|-$/g, "")
-    .substring(0, 20);
-  return `${slug}-${Date.now().toString(36).toUpperCase().slice(-5)}`;
-}
-
-// Sync product catalog after payment is confirmed:
-// - Auto-create products for unlinked line items (matched by name or brand new)
-// - Upsert per-vendor prices for all items
-async function syncProductCatalog(
-  poId: string,
-  lineItems: { id: string; name: string; unitPrice: { toNumber(): number } | number; productId: string | null }[],
-  vendorId: string | null,
-  actorId: string
-) {
-  const updatedProductIds: string[] = [];
-
-  for (const li of lineItems) {
-    const unitPrice = typeof li.unitPrice === "number" ? li.unitPrice : li.unitPrice.toNumber();
-    let productId = li.productId;
-    let priceChanged = false;
-
-    if (!productId) {
-      // Try to find an existing product by name (case-insensitive)
-      const existing = await db.product.findFirst({
-        where: { name: { equals: li.name, mode: "insensitive" }, isActive: true },
-        select: { id: true, lastPrice: true },
-      });
-
-      if (existing) {
-        productId = existing.id;
-        priceChanged = Number(existing.lastPrice ?? 0) !== unitPrice;
-      } else {
-        // Create a new product — first-time registration, not a price update
-        const code = nameToCode(li.name);
-        try {
-          const created = await db.product.create({
-            data: { code, name: li.name, lastPrice: unitPrice, lastVendorId: vendorId },
-          });
-          productId = created.id;
-        } catch {
-          // Code collision (extremely unlikely) — add extra entropy
-          const created = await db.product.create({
-            data: {
-              code: `${code}-${Math.random().toString(36).slice(2, 5).toUpperCase()}`,
-              name: li.name,
-              lastPrice: unitPrice,
-              lastVendorId: vendorId,
-            },
-          });
-          productId = created.id;
-        }
-      }
-
-      // Link the line item to the product for future reference
-      await db.pOLineItem.update({ where: { id: li.id }, data: { productId } });
-    } else {
-      const current = await db.product.findUnique({
-        where: { id: productId },
-        select: { lastPrice: true },
-      });
-      priceChanged = !current || Number(current.lastPrice ?? 0) !== unitPrice;
-    }
-
-    // Always update lastPrice / lastVendorId on the product
-    await db.product.update({
-      where: { id: productId },
-      data: { lastPrice: unitPrice, lastVendorId: vendorId ?? undefined },
-    });
-
-    // Upsert per-vendor price if PO has a vendor
-    if (vendorId) {
-      await db.productVendorPrice.upsert({
-        where: { productId_vendorId: { productId, vendorId } },
-        update: { price: unitPrice },
-        create: { productId, vendorId, price: unitPrice },
-      });
-    }
-
-    if (priceChanged) updatedProductIds.push(productId);
-  }
-
-  if (updatedProductIds.length > 0) {
-    await db.pOAction.create({
-      data: {
-        actionType: "PRODUCT_PRICE_UPDATED",
-        actorId,
-        poId,
-        metadata: { updatedProductIds },
-      },
-    });
-  }
-}
-
 // Step 1: Accounts picks up the PO — MGR_APPROVED → SENT_FOR_PAYMENT
 export async function processPayment({ poId }: { poId: string }): Promise<ActionResult> {
   const session = await auth();
diff --git a/App/lib/product-catalog.ts b/App/lib/product-catalog.ts
new file mode 100644
index 0000000..d905011
--- /dev/null
+++ b/App/lib/product-catalog.ts
@@ -0,0 +1,105 @@
+import { db } from "@/lib/db";
+
+/**
+ * Product catalogue sync — registers a PO's line items as reusable `Product`s
+ * (the `/inventory/items` catalogue) and keeps last/per-vendor prices fresh:
+ *  - line items with no `productId` are matched to an existing product by name,
+ *    or a brand-new product is created, and the line item is linked back;
+ *  - `lastPrice`/`lastVendorId` and the per-vendor price are upserted.
+ *
+ * Called at **approval** (so approved items are immediately reusable in further
+ * POs) and again at **payment** (to refresh prices on the final figures). The
+ * function is idempotent — re-running matches the same product by name/id.
+ */
+function nameToCode(name: string): string {
+  const slug = name.toUpperCase()
+    .replace(/[^A-Z0-9]+/g, "-")
+    .replace(/^-|-$/g, "")
+    .substring(0, 20);
+  return `${slug}-${Date.now().toString(36).toUpperCase().slice(-5)}`;
+}
+
+export async function syncProductCatalog(
+  poId: string,
+  lineItems: { id: string; name: string; unitPrice: { toNumber(): number } | number; productId: string | null }[],
+  vendorId: string | null,
+  actorId: string
+) {
+  const updatedProductIds: string[] = [];
+
+  for (const li of lineItems) {
+    const unitPrice = typeof li.unitPrice === "number" ? li.unitPrice : li.unitPrice.toNumber();
+    let productId = li.productId;
+    let priceChanged = false;
+
+    if (!productId) {
+      // Try to find an existing product by name (case-insensitive)
+      const existing = await db.product.findFirst({
+        where: { name: { equals: li.name, mode: "insensitive" }, isActive: true },
+        select: { id: true, lastPrice: true },
+      });
+
+      if (existing) {
+        productId = existing.id;
+        priceChanged = Number(existing.lastPrice ?? 0) !== unitPrice;
+      } else {
+        // Create a new product — first-time registration, not a price update
+        const code = nameToCode(li.name);
+        try {
+          const created = await db.product.create({
+            data: { code, name: li.name, lastPrice: unitPrice, lastVendorId: vendorId },
+          });
+          productId = created.id;
+        } catch {
+          // Code collision (extremely unlikely) — add extra entropy
+          const created = await db.product.create({
+            data: {
+              code: `${code}-${Math.random().toString(36).slice(2, 5).toUpperCase()}`,
+              name: li.name,
+              lastPrice: unitPrice,
+              lastVendorId: vendorId,
+            },
+          });
+          productId = created.id;
+        }
+      }
+
+      // Link the line item to the product for future reference
+      await db.pOLineItem.update({ where: { id: li.id }, data: { productId } });
+    } else {
+      const current = await db.product.findUnique({
+        where: { id: productId },
+        select: { lastPrice: true },
+      });
+      priceChanged = !current || Number(current.lastPrice ?? 0) !== unitPrice;
+    }
+
+    // Always update lastPrice / lastVendorId on the product
+    await db.product.update({
+      where: { id: productId },
+      data: { lastPrice: unitPrice, lastVendorId: vendorId ?? undefined },
+    });
+
+    // Upsert per-vendor price if PO has a vendor
+    if (vendorId) {
+      await db.productVendorPrice.upsert({
+        where: { productId_vendorId: { productId, vendorId } },
+        update: { price: unitPrice },
+        create: { productId, vendorId, price: unitPrice },
+      });
+    }
+
+    if (priceChanged) updatedProductIds.push(productId);
+  }
+
+  if (updatedProductIds.length > 0) {
+    await db.pOAction.create({
+      data: {
+        actionType: "PRODUCT_PRICE_UPDATED",
+        actorId,
+        poId,
+        metadata: { updatedProductIds },
+      },
+    });
+  }
+}
diff --git a/App/tests/integration/approval-actions.test.ts b/App/tests/integration/approval-actions.test.ts
index 5006743..56e0a02 100644
--- a/App/tests/integration/approval-actions.test.ts
+++ b/App/tests/integration/approval-actions.test.ts
@@ -2,7 +2,7 @@
  * Integration tests for manager approval server actions.
  * Covers: M-02 (approve / approve+note), M-03 (reject), M-04 (request edits, vendor ID), S-06 (provide vendor ID), S-07 (resubmit after edits).
  */
-import { vi, describe, it, expect, beforeAll, beforeEach, afterEach } from "vitest";
+import { vi, describe, it, expect, beforeAll, beforeEach, afterEach, afterAll } from "vitest";
 
 vi.mock("@/auth", () => ({ auth: vi.fn() }));
 vi.mock("next/cache", () => ({ revalidatePath: vi.fn() }));
@@ -47,6 +47,12 @@ afterEach(async () => {
   await deletePosByTitle(PREFIX);
 });
 
+afterAll(async () => {
+  // Products auto-created by the catalogue-on-approval test.
+  await db.productVendorPrice.deleteMany({ where: { product: { name: { startsWith: PREFIX } } } });
+  await db.product.deleteMany({ where: { name: { startsWith: PREFIX } } });
+});
+
 // Helper: create a PO in MGR_REVIEW state
 async function createSubmittedPo(title: string): Promise<string> {
   vi.mocked(auth as unknown as () => Promise<unknown>).mockResolvedValue(makeSession(techId, "TECHNICAL"));
@@ -159,6 +165,40 @@ describe("issue #92 — advance payment on approval", () => {
   });
 });
 
+// ── Product catalogue registered on approval (so items are reusable) ─────────
+
+describe("product catalogue on approval", () => {
+  it("creates a catalogue product for a free-text line item and links it", async () => {
+    vi.mocked(auth as unknown as () => Promise<unknown>).mockResolvedValue(makeSession(techId, "TECHNICAL"));
+    const itemName = `${PREFIX}Starter VPS hosting`;
+    const form = makePoForm({
+      title: `${PREFIX}CatApprove`,
+      vesselId,
+      accountId,
+      intent: "submit",
+      lineItems: [{ description: itemName, quantity: 1, unit: "pc", unitPrice: 459.95 }],
+    });
+    const { id: poId } = (await createPo(form)) as { id: string };
+    await db.purchaseOrder.update({ where: { id: poId }, data: { vendorId } });
+
+    // No catalogue product exists for this name before approval.
+    expect(await db.product.findFirst({ where: { name: { equals: itemName, mode: "insensitive" } } })).toBeNull();
+
+    vi.mocked(auth as unknown as () => Promise<unknown>).mockResolvedValue(makeSession(managerId, "MANAGER"));
+    expect(await approvePo({ poId })).toEqual({ ok: true });
+
+    const product = await db.product.findFirst({ where: { name: { equals: itemName, mode: "insensitive" } } });
+    expect(product).not.toBeNull();
+    expect(Number(product!.lastPrice)).toBe(459.95);
+
+    // The line item is linked back to the new product, and a per-vendor price is recorded.
+    const li = await db.pOLineItem.findFirstOrThrow({ where: { poId } });
+    expect(li.productId).toBe(product!.id);
+    const pvp = await db.productVendorPrice.findFirst({ where: { productId: product!.id, vendorId } });
+    expect(pvp).not.toBeNull();
+  });
+});
+
 // ── M-03: Reject ──────────────────────────────────────────────────────────────
 
 describe("M-03 — reject PO", () => {