diff --git a/App/components/layout/sidebar.tsx b/App/components/layout/sidebar.tsx
index 39f97fc..4eba98d 100644
--- a/App/components/layout/sidebar.tsx
+++ b/App/components/layout/sidebar.tsx
@@ -56,17 +56,21 @@ const HISTORY_ROLES: Role[] = [
 
 const NAV_ITEMS: NavItem[] = [
   { href: "/dashboard",        label: "Dashboard",              icon: LayoutDashboard },
-  { href: "/po/new",           label: "New PO",                 icon: Plus,        roles: ["TECHNICAL", "MANNING", "MANAGER", "SUPERUSER"] },
-  { href: "/my-orders",        label: "Closed Purchase Orders", icon: FileText,    roles: ["TECHNICAL", "MANNING", "MANAGER", "SUPERUSER"] },
-  { href: "/po/import",        label: "Import PO",              icon: Upload,      roles: ["MANAGER", "SUPERUSER"] },
   { href: "/approvals",        label: "Approvals",              icon: CheckSquare, roles: ["MANAGER", "SUPERUSER"] },
   { href: "/payments",         label: "Payments",               icon: CreditCard,  roles: ["ACCOUNTS"] },
   { href: "/payments/history", label: "Payment History",        icon: Receipt,     roles: ["ACCOUNTS", "SUPERUSER"] },
-  { href: "/history",          label: "History",                icon: History,     roles: HISTORY_ROLES },
   { href: "/profile",          label: "My Profile",             icon: UserCircle },
 ];
 
 // ── Purchasing section ────────────────────────────────────────────────────────
+// Purchase Order actions (create / browse / import / history)
+const PURCHASING_PO: NavItem[] = [
+  { href: "/po/new",     label: "New Purchase Order",     icon: Plus,     roles: ["TECHNICAL", "MANNING", "MANAGER", "SUPERUSER"] },
+  { href: "/my-orders",  label: "Closed Purchase Orders", icon: FileText, roles: ["TECHNICAL", "MANNING", "MANAGER", "SUPERUSER"] },
+  { href: "/po/import",  label: "Import Purchase Order",  icon: Upload,   roles: ["MANAGER", "SUPERUSER"] },
+  { href: "/history",    label: "Purchase Order History", icon: History,  roles: HISTORY_ROLES },
+];
+
 // Staff browsing items (product catalogue + cart for PO creation)
 const PURCHASING_STAFF: NavItem[] = [
   { href: "/catalogue/items",   label: "Items",         icon: Package,      roles: ["TECHNICAL", "MANNING", "SUPERUSER"] },
@@ -85,7 +89,7 @@ const PURCHASING_MGMT: NavItem[] = [
     : []),
 ];
 
-const PURCHASING_ITEMS: NavItem[] = [...PURCHASING_STAFF, ...PURCHASING_MGMT];
+const PURCHASING_ITEMS: NavItem[] = [...PURCHASING_PO, ...PURCHASING_STAFF, ...PURCHASING_MGMT];
 
 // ── Crewing section (feature-flagged) ─────────────────────────────────────────
 // Gated by CREWING_ENABLED. Phase 2 adds Requisitions (Manager + MPO, per
diff --git a/App/tests/unit/sidebar.test.tsx b/App/tests/unit/sidebar.test.tsx
index 7b88292..5facd73 100644
--- a/App/tests/unit/sidebar.test.tsx
+++ b/App/tests/unit/sidebar.test.tsx
@@ -100,3 +100,37 @@ describe("Sidebar collapsible sections", () => {
     expect(within(adminVendors).queryByText("Vendors")).toBeTruthy();
   });
 });
+
+describe("Purchase Order links under Purchasing", () => {
+  it("renders the renamed PO links inside the Purchasing section (not top-level)", () => {
+    render(<Sidebar userRole="MANAGER" />);
+
+    // Collapsed by default → PO links are not in the DOM until Purchasing opens.
+    expect(screen.queryByRole("link", { name: /New Purchase Order/i })).not.toBeInTheDocument();
+
+    fireEvent.click(headerButton("Purchasing"));
+
+    expect(screen.getByRole("link", { name: /New Purchase Order/i })).toBeInTheDocument();
+    expect(screen.getByRole("link", { name: /Closed Purchase Orders/i })).toBeInTheDocument();
+    expect(screen.getByRole("link", { name: /Import Purchase Order/i })).toBeInTheDocument();
+    expect(screen.getByRole("link", { name: /Purchase Order History/i })).toBeInTheDocument();
+  });
+
+  it("auto-expands Purchasing when a PO route is active", () => {
+    mockPathname = "/po/new";
+    render(<Sidebar userRole="MANAGER" />);
+
+    expect(headerButton("Purchasing")).toHaveAttribute("aria-expanded", "true");
+    expect(screen.getByRole("link", { name: /New Purchase Order/i })).toBeInTheDocument();
+  });
+
+  it("drops the old PO labels", () => {
+    render(<Sidebar userRole="MANAGER" />);
+    fireEvent.click(headerButton("Purchasing"));
+
+    // Old labels were "New PO" / "Import PO" / "History".
+    expect(screen.queryByRole("link", { name: /^New PO$/i })).not.toBeInTheDocument();
+    expect(screen.queryByRole("link", { name: /^Import PO$/i })).not.toBeInTheDocument();
+    expect(screen.queryByRole("link", { name: /^History$/i })).not.toBeInTheDocument();
+  });
+});