diff --git a/client/src/modules/purchasing/PurchaseFormPage.tsx b/client/src/modules/purchasing/PurchaseFormPage.tsx
index ea4920c..57d5ce7 100644
--- a/client/src/modules/purchasing/PurchaseFormPage.tsx
+++ b/client/src/modules/purchasing/PurchaseFormPage.tsx
@@ -66,7 +66,7 @@ export function PurchaseFormPage({ mode }: { mode: "create" | "edit" }) {
       .then((planning: SalesOrderPlanningDto) => {
         const recommendedNodes = planning.lines.flatMap((line) =>
           collectRecommendedPurchaseNodes(line.rootNode).map((node) => ({
-            salesOrderLineId: line.lineId,
+            salesOrderLineId: node.itemId === line.itemId ? line.lineId : null,
             ...node,
           }))
         );