diff --git a/src/components/production/WorkerScreen/MaterialInputModal.tsx b/src/components/production/WorkerScreen/MaterialInputModal.tsx
index f040f03f..9b7f5a4b 100644
--- a/src/components/production/WorkerScreen/MaterialInputModal.tsx
+++ b/src/components/production/WorkerScreen/MaterialInputModal.tsx
@@ -937,8 +937,8 @@ export function MaterialInputModal({
                     </Table>
                     </div>
 
-                    {/* [DEV] LOT 있는 그룹에서도 강제입고 가능 */}
-                    {group.lots[0]?.itemId && group.lots.some(l => l.stockLotId !== null) && (
+                    {/* [DEV] 배정 미완료 그룹에서만 강제입고 */}
+                    {group.lots[0]?.itemId && group.lots.some(l => l.stockLotId !== null) && !isFulfilled && (
                       <div className="px-4 py-1.5 border-t">
                         <Button
                           size="sm"