diff --git a/src/components/stock-orders/quick-draft-modal.test.tsx b/src/components/stock-orders/quick-draft-modal.test.tsx
index 8b5b374..6299784 100644
--- a/src/components/stock-orders/quick-draft-modal.test.tsx
+++ b/src/components/stock-orders/quick-draft-modal.test.tsx
@@ -6,8 +6,13 @@ import { QuickDraftModal } from "./quick-draft-modal";
 // The component test environment stubs it via a passthrough wrapper.
 vi.mock("@/components/ui/modal-shell", () => ({
   ModalShell: {
-    Dialog: ({ children, open }: { children: React.ReactNode; open: boolean }) =>
-      open ? <div data-testid="modal">{children}</div> : null,
+    Dialog: ({
+      children,
+      open,
+    }: {
+      children: React.ReactNode;
+      open: boolean;
+    }) => (open ? <div data-testid="modal">{children}</div> : null),
   },
 }));
 
@@ -17,19 +22,12 @@ beforeEach(() => {
 
 describe("QuickDraftModal — header", () => {
   it("renders nothing when closed", () => {
-    render(
-      <QuickDraftModal
-        open={false}
-        onOpenChange={() => {}}
-      />,
-    );
+    render(<QuickDraftModal open={false} onOpenChange={() => {}} />);
     expect(screen.queryByTestId("modal")).toBeNull();
   });
 
   it("renders the Stock Order Reference input with a default month label", () => {
-    render(
-      <QuickDraftModal open onOpenChange={() => {}} />,
-    );
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
     const input = screen.getByTestId("stock-order-reference");
     expect(input).toBeInTheDocument();
     // Value defaults to "Stock order entry — <MonthYear>" (e.g. "Stock order entry — Jul 2026").
@@ -37,9 +35,7 @@ describe("QuickDraftModal — header", () => {
   });
 
   it("lets the buyer rename the reference", () => {
-    render(
-      <QuickDraftModal open onOpenChange={() => {}} />,
-    );
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
     const input = screen.getByTestId(
       "stock-order-reference",
     ) as HTMLInputElement;
@@ -143,3 +139,156 @@ describe("QuickDraftModal — search", () => {
     expect(screen.getByText(/R 18\.50/)).toBeInTheDocument();
   });
 });
+
+describe("QuickDraftModal — add & next", () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+
+    global.fetch = vi
+      .fn()
+      // search
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({
+          ok: true,
+          items: [
+            { id: "item-1", sku: "STK-CD-115", name: "115mm Cutting Disc" },
+          ],
+        }),
+      })
+      // history
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({
+          ok: true,
+          history: [
+            {
+              supplierId: "sup-1",
+              supplierName: "Steel & Pipe Co",
+              lastCost: 18.5,
+              lastDate: "2026-07-14T08:00:00.000Z",
+              timesBought: 2,
+            },
+          ],
+        }),
+      })
+      // add-line
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({
+          ok: true,
+          purchaseId: "po-1",
+          purchaseNumber: "PO26073001STK",
+          lineId: "line-1",
+          createdDraft: true,
+        }),
+      });
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it("renders qty + cost inputs after a supplier is picked", async () => {
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
+    fireEvent.change(screen.getByTestId("quick-draft-search"), {
+      target: { value: "cutting" },
+    });
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(250);
+    });
+    fireEvent.click(screen.getByText(/115mm Cutting Disc/));
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(0);
+    });
+    expect(screen.getByTestId("quick-draft-qty")).toBeInTheDocument();
+    expect(screen.getByTestId("quick-draft-cost")).toBeInTheDocument();
+  });
+
+  it("disables the Add button until supplier + qty + cost are valid", async () => {
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
+    fireEvent.change(screen.getByTestId("quick-draft-search"), {
+      target: { value: "cutting" },
+    });
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(250);
+    });
+    fireEvent.click(screen.getByText(/115mm Cutting Disc/));
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(0);
+    });
+    const addBtn = screen.getByTestId("quick-draft-add");
+    expect(addBtn).toBeDisabled();
+
+    fireEvent.click(screen.getByLabelText(/Steel & Pipe Co/));
+    expect(addBtn).toBeDisabled();
+
+    fireEvent.change(screen.getByTestId("quick-draft-qty"), {
+      target: { value: "0" },
+    });
+    fireEvent.change(screen.getByTestId("quick-draft-cost"), {
+      target: { value: "20" },
+    });
+    expect(addBtn).toBeDisabled();
+
+    fireEvent.change(screen.getByTestId("quick-draft-qty"), {
+      target: { value: "50" },
+    });
+    expect(addBtn).not.toBeDisabled();
+  });
+
+  it("POSTs to add-line and toasts success", async () => {
+    const { toast } = await import("sonner");
+    const successSpy = vi.spyOn(toast, "success").mockImplementation(() => "");
+
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
+    fireEvent.change(screen.getByTestId("quick-draft-search"), {
+      target: { value: "cutting" },
+    });
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(250);
+    });
+    fireEvent.click(screen.getByText(/115mm Cutting Disc/));
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(0);
+    });
+    fireEvent.click(screen.getByLabelText(/Steel & Pipe Co/));
+    fireEvent.change(screen.getByTestId("quick-draft-qty"), {
+      target: { value: "50" },
+    });
+    fireEvent.change(screen.getByTestId("quick-draft-cost"), {
+      target: { value: "20" },
+    });
+    fireEvent.click(screen.getByTestId("quick-draft-add"));
+
+    await act(async () => {
+      await vi.advanceTimersByTimeAsync(0);
+    });
+
+    const addCalls = (
+      global.fetch as ReturnType<typeof vi.fn>
+    ).mock.calls.filter(
+      (c) => typeof c[0] === "string" && c[0].includes("/add-line"),
+    );
+    expect(addCalls.length).toBeGreaterThan(0);
+    const [, init] = addCalls[0];
+    const body = JSON.parse(init.body);
+    expect(body).toMatchObject({
+      supplierId: "sup-1",
+      stockItemId: "item-1",
+      quantity: 50,
+      costPrice: 20,
+    });
+    expect(successSpy).toHaveBeenCalled();
+    successSpy.mockRestore();
+  });
+
+  it("+ New SKU toggle flips the form to name + SKU inputs", async () => {
+    render(<QuickDraftModal open onOpenChange={() => {}} />);
+    fireEvent.click(screen.getByTestId("quick-draft-toggle-new-sku"));
+    expect(screen.getByTestId("quick-draft-new-sku-name")).toBeInTheDocument();
+    expect(screen.getByTestId("quick-draft-new-sku-sku")).toBeInTheDocument();
+    // Search region is hidden in new-SKU mode.
+    expect(screen.queryByTestId("quick-draft-search")).not.toBeInTheDocument();
+  });
+});
diff --git a/src/components/stock-orders/quick-draft-modal.tsx b/src/components/stock-orders/quick-draft-modal.tsx
index b417632..6478688 100644
--- a/src/components/stock-orders/quick-draft-modal.tsx
+++ b/src/components/stock-orders/quick-draft-modal.tsx
@@ -2,7 +2,9 @@
 
 import { useEffect, useState } from "react";
 import { toast } from "sonner";
+import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
 import { ModalShell } from "@/components/ui/modal-shell";
 import type {
   StockItemSearchResult,
@@ -48,11 +50,30 @@ export function QuickDraftModal({ open, onOpenChange }: QuickDraftModalProps) {
   const [searchResults, setSearchResults] = useState<StockItemSearchResult[]>(
     [],
   );
-  const [selectedItem, setSelectedItem] = useState<StockItemSearchResult | null>(
-    null,
-  );
+  const [selectedItem, setSelectedItem] =
+    useState<StockItemSearchResult | null>(null);
   const [history, setHistory] = useState<SupplierHistoryEntry[]>([]);
   const [historyLoading, setHistoryLoading] = useState(false);
+  const [supplierChoice, setSupplierChoice] = useState<string | null>(null);
+  const [qty, setQty] = useState("");
+  const [cost, setCost] = useState("");
+  const [newSkuMode, setNewSkuMode] = useState(false);
+  const [newSkuName, setNewSkuName] = useState("");
+  const [newSkuSku, setNewSkuSku] = useState("");
+  const [submitting, setSubmitting] = useState(false);
+
+  const parsedQty = Number.parseFloat(qty);
+  const parsedCost = Number.parseFloat(cost);
+  const newSkuValid =
+    newSkuName.trim().length > 0 && newSkuSku.trim().length > 0;
+  const canSubmit =
+    !submitting &&
+    supplierChoice !== null &&
+    Number.isFinite(parsedQty) &&
+    parsedQty > 0 &&
+    Number.isFinite(parsedCost) &&
+    parsedCost >= 0 &&
+    (newSkuMode ? newSkuValid : selectedItem !== null);
 
   // Debounced search.
   useEffect(() => {
@@ -97,6 +118,7 @@ export function QuickDraftModal({ open, onOpenChange }: QuickDraftModalProps) {
 
   const onPickItem = async (item: StockItemSearchResult) => {
     setSelectedItem(item);
+    setSupplierChoice(null);
     setHistoryLoading(true);
     setHistory([]);
     try {
@@ -124,6 +146,50 @@ export function QuickDraftModal({ open, onOpenChange }: QuickDraftModalProps) {
     }
   };
 
+  const onAddAndNext = async () => {
+    if (!canSubmit) return;
+    setSubmitting(true);
+    try {
+      const body: Record<string, unknown> = {
+        supplierId: supplierChoice,
+        quantity: parsedQty,
+        costPrice: parsedCost,
+      };
+      if (newSkuMode) {
+        body.newStockItem = {
+          name: newSkuName.trim(),
+          sku: newSkuSku.trim(),
+        };
+      } else {
+        body.stockItemId = selectedItem?.id;
+      }
+
+      const res = await fetch("/api/v1/stock-quick-draft/add-line", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(body),
+      });
+      const data = (await res.json()) as {
+        ok: boolean;
+        purchaseNumber?: string;
+        message?: string;
+      };
+      if (!res.ok || !data.ok) {
+        toast.error(data.message ?? "Could not add line");
+        return;
+      }
+      toast.success(`Added to PO ${data.purchaseNumber}`);
+      setQty("");
+      setCost("");
+      setNewSkuName("");
+      setNewSkuSku("");
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Network error");
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
   return (
     <ModalShell.Dialog
       open={open}
@@ -142,31 +208,35 @@ export function QuickDraftModal({ open, onOpenChange }: QuickDraftModalProps) {
       </div>
 
       <div className="space-y-3">
-        <Input
-          data-testid="quick-draft-search"
-          placeholder="Search stock item (e.g. '115 cutting disc')"
-          value={searchQuery}
-          onChange={(e) => setSearchQuery(e.target.value)}
-        />
-        {searchResults.length > 0 && (
-          <div className="rounded-md border divide-y">
-            {searchResults.map((item) => (
-              <button
-                key={item.id}
-                type="button"
-                className="w-full px-3 py-2 text-left text-sm hover:bg-muted/40"
-                onClick={() => onPickItem(item)}
-              >
-                <div className="font-medium">{item.name}</div>
-                <div className="text-xs text-muted-foreground">
-                  SKU: {item.sku}
-                </div>
-              </button>
-            ))}
-          </div>
+        {!newSkuMode && (
+          <>
+            <Input
+              data-testid="quick-draft-search"
+              placeholder="Search stock item (e.g. '115 cutting disc')"
+              value={searchQuery}
+              onChange={(e) => setSearchQuery(e.target.value)}
+            />
+            {searchResults.length > 0 && (
+              <div className="rounded-md border divide-y">
+                {searchResults.map((item) => (
+                  <button
+                    key={item.id}
+                    type="button"
+                    className="w-full px-3 py-2 text-left text-sm hover:bg-muted/40"
+                    onClick={() => onPickItem(item)}
+                  >
+                    <div className="font-medium">{item.name}</div>
+                    <div className="text-xs text-muted-foreground">
+                      SKU: {item.sku}
+                    </div>
+                  </button>
+                ))}
+              </div>
+            )}
+          </>
         )}
 
-        {selectedItem && (
+        {selectedItem && !newSkuMode && (
           <div className="rounded-md border bg-muted/20 p-3 space-y-3">
             <div className="text-sm font-medium">{selectedItem.name}</div>
             {historyLoading && (
@@ -180,26 +250,115 @@ export function QuickDraftModal({ open, onOpenChange }: QuickDraftModalProps) {
               </div>
             )}
             {!historyLoading && history.length > 0 && (
-              <div className="text-xs space-y-1">
+              <div className="text-xs space-y-1" role="radiogroup">
                 {history.map((entry) => (
-                  <div
+                  <label
                     key={entry.supplierId}
-                    className="flex justify-between"
+                    className="flex cursor-pointer items-center justify-between gap-2"
                   >
-                    <span>{entry.supplierName}</span>
+                    <span className="flex items-center gap-2">
+                      <input
+                        type="radio"
+                        name="quick-draft-supplier"
+                        value={entry.supplierId}
+                        checked={supplierChoice === entry.supplierId}
+                        onChange={() => setSupplierChoice(entry.supplierId)}
+                        className="size-4 accent-primary"
+                      />
+                      <span>{entry.supplierName}</span>
+                    </span>
                     <span className="text-muted-foreground">
                       last paid: <strong>R {entry.lastCost.toFixed(2)}</strong>
                     </span>
-                  </div>
+                  </label>
                 ))}
               </div>
             )}
           </div>
         )}
+
+        {(selectedItem || newSkuMode) && (
+          <div className="grid grid-cols-2 gap-2">
+            <div>
+              <Label htmlFor="quick-draft-qty">Qty</Label>
+              <Input
+                id="quick-draft-qty"
+                data-testid="quick-draft-qty"
+                type="number"
+                inputMode="numeric"
+                min="0"
+                value={qty}
+                onChange={(e) => setQty(e.target.value)}
+              />
+            </div>
+            <div>
+              <Label htmlFor="quick-draft-cost">Cost</Label>
+              <Input
+                id="quick-draft-cost"
+                data-testid="quick-draft-cost"
+                type="number"
+                inputMode="decimal"
+                min="0"
+                step="0.01"
+                value={cost}
+                onChange={(e) => setCost(e.target.value)}
+              />
+            </div>
+          </div>
+        )}
+
+        {!newSkuMode ? (
+          <button
+            type="button"
+            data-testid="quick-draft-toggle-new-sku"
+            className="text-xs underline text-muted-foreground"
+            onClick={() => setNewSkuMode(true)}
+          >
+            + New SKU not in stock yet
+          </button>
+        ) : (
+          <div className="space-y-2 rounded-md border bg-muted/20 p-3">
+            <div>
+              <Label htmlFor="quick-draft-new-sku-name">Name</Label>
+              <Input
+                id="quick-draft-new-sku-name"
+                data-testid="quick-draft-new-sku-name"
+                value={newSkuName}
+                onChange={(e) => setNewSkuName(e.target.value)}
+              />
+            </div>
+            <div>
+              <Label htmlFor="quick-draft-new-sku-sku">SKU</Label>
+              <Input
+                id="quick-draft-new-sku-sku"
+                data-testid="quick-draft-new-sku-sku"
+                value={newSkuSku}
+                onChange={(e) => setNewSkuSku(e.target.value)}
+              />
+            </div>
+            <button
+              type="button"
+              className="text-xs underline text-muted-foreground"
+              onClick={() => setNewSkuMode(false)}
+            >
+              Cancel — search existing SKUs
+            </button>
+          </div>
+        )}
+
+        <Button
+          type="button"
+          data-testid="quick-draft-add"
+          disabled={!canSubmit}
+          onClick={onAddAndNext}
+          className="w-full"
+        >
+          Add &amp; next
+        </Button>
       </div>
 
       {/* Regions wired up in later tasks */}
       <div data-testid="region-cards" hidden />
     </ModalShell.Dialog>
   );
-}
\ No newline at end of file
+}