diff --git a/src/components/CatalogueBrowser.tsx b/src/components/CatalogueBrowser.tsx
index 1da7c6b..b3a3a8c 100644
--- a/src/components/CatalogueBrowser.tsx
+++ b/src/components/CatalogueBrowser.tsx
@@ -236,7 +236,7 @@ export default function CatalogueBrowser({ tenantid, locationid, onClose }: Cata
                                   catalogueid: p.id,
                                   categoryid: validCategory,
                                   subcategoryid: 0,
-                                  quantity: 1,
+                                  quantity: 0,
                                   stocktype: "in",
                                   // Draft: lands in the Admin Catalogue only. It only becomes
                                   // visible to store users once the admin explicitly publishes
diff --git a/src/components/ImportProductModal.tsx b/src/components/ImportProductModal.tsx
index fcbc5a4..7a5b247 100644
--- a/src/components/ImportProductModal.tsx
+++ b/src/components/ImportProductModal.tsx
@@ -143,7 +143,7 @@ export default function ImportProductModal({
                     catalogueid: product.id,
                     categoryid: validCategory,
                     subcategoryid: 0,
-                    quantity: 1,
+                    quantity: 0,
                     stocktype: "in",
                     status: "Draft",
                     retailprice: 0,
diff --git a/src/services/catalogueApi.ts b/src/services/catalogueApi.ts
index b7b3bf1..ecbd1bd 100644
--- a/src/services/catalogueApi.ts
+++ b/src/services/catalogueApi.ts
@@ -103,7 +103,7 @@ async function fallbackCreateProductLocation(items: ImportCatalogueProductReques
     tenantid: item.tenantid,
     locationid: item.locationid,
     productid: item.catalogueid,
-    quantity: item.quantity || 1,
+    quantity: item.quantity ?? 0,
     stocktype: item.stocktype || "in",
     status: item.status || "Active",
     retailprice: item.retailprice || 0,