diff --git a/src/components/purchase-orders/EditPurchaseOrderDialog.tsx b/src/components/purchase-orders/EditPurchaseOrderDialog.tsx
index 2eb8276..f3098a4 100644
--- a/src/components/purchase-orders/EditPurchaseOrderDialog.tsx
+++ b/src/components/purchase-orders/EditPurchaseOrderDialog.tsx
@@ -134,13 +134,18 @@ export function EditPurchaseOrderDialog({ open, onOpenChange, order, refreshData
       }))
 
       // Build updated snapshot — keep stable ids + entry mode so the audit
-      // trail remains meaningful.
+      // trail remains meaningful. costPrice is the ZAR landed cost, so carry
+      // the existing value over per row instead of zeroing it; costPriceGBP is
+      // the price the user sees in the form and is what the PO PDF renders.
+      const existingSnapshot = order.snapshotItems || []
       const updatedSnapshot = normalizedRows.map((r) => ({
         stockItemId: r.stockItemId,
         itemName: r.itemName,
         sku: r.sku,
         quantity: r.quantity,
-        costPrice: 0,
+        costPrice: Number(
+          existingSnapshot.find((s) => s.stockItemId === r.stockItemId)?.costPrice || 0,
+        ),
         costPriceGBP: r.unitPriceGBP,
         entryMode: r.entryMode,
       }))
diff --git a/src/components/purchase-orders/PurchaseOrderForm.tsx b/src/components/purchase-orders/PurchaseOrderForm.tsx
index acd23cc..fb7a57a 100644
--- a/src/components/purchase-orders/PurchaseOrderForm.tsx
+++ b/src/components/purchase-orders/PurchaseOrderForm.tsx
@@ -11,6 +11,7 @@ import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group"
 import {
   Form,
   FormControl,
+  FormDescription,
   FormField,
   FormItem,
   FormLabel,
@@ -260,8 +261,12 @@ export function PurchaseOrderForm({ setOpen, refreshData }: PurchaseOrderFormPro
       form.setValue(`items.${index}.stockItemId`, selectedStockItem.id, { shouldDirty: true });
       form.setValue(`items.${index}.itemName`, selectedStockItem.name, { shouldDirty: true });
       form.setValue(`items.${index}.sku`, selectedStockItem.sku, { shouldDirty: true });
-      // Use GBP price for purchase orders
-      form.setValue(`items.${index}.costPrice`, selectedStockItem.costPriceGBP, { shouldDirty: true, shouldValidate: true });
+      // Use GBP price for purchase orders. Most stock items only carry a ZAR
+      // cost price (cost_price), so leave the field BLANK instead of silently
+      // showing £0.00 — a blank field tells the user the supplier's GBP price
+      // still has to be entered, whereas "£0.00" looks like a real price.
+      const gbpPrice = Number(selectedStockItem.costPriceGBP || 0);
+      form.setValue(`items.${index}.costPrice`, gbpPrice > 0 ? gbpPrice : ("" as any), { shouldDirty: true, shouldValidate: true });
       // Leave quantity blank — user types the amount they want.
       form.setValue(`items.${index}.quantity`, "", { shouldDirty: true, shouldValidate: true });
     }
@@ -357,8 +362,14 @@ export function PurchaseOrderForm({ setOpen, refreshData }: PurchaseOrderFormPro
           itemName: item.itemName,
           sku: item.sku,
           quantity: item.quantity,
-          costPrice: Number(item.costPrice || 0),
-          costPriceGBP: Number(stockItem?.costPriceGBP || 0),
+          // ZAR landed cost, for reference only — the PO itself is priced in GBP.
+          costPrice: Number(stockItem?.costPrice ?? 0),
+          // The GBP unit price taken from the FORM. This is the only price
+          // field the PO PDF renders (£${item.costPriceGBP}), so it must be the
+          // value the user sees and edits. Reading it from the stock item
+          // instead silently discarded every price typed into the form and
+          // printed £0.00 on the PO.
+          costPriceGBP: Number(item.costPrice || 0),
           entryMode: 'stock',
         });
       }
@@ -755,6 +766,11 @@ export function PurchaseOrderForm({ setOpen, refreshData }: PurchaseOrderFormPro
                               onChange={(v) => field.onChange(v)}
                             />
                           </FormControl>
+                          {!(Number(field.value || 0) > 0) && (
+                            <FormDescription className="text-xs text-amber-600 dark:text-amber-400">
+                              No GBP cost price on this stock item — enter the supplier&apos;s GBP price.
+                            </FormDescription>
+                          )}
                           <FormMessage />
                         </FormItem>
                       )}