1 files changed, 15 insertions, 1 deletions
diff --git a/components/bidding/manage/bidding-detail-vendor-create-dialog.tsx b/components/bidding/manage/bidding-detail-vendor-create-dialog.tsx
index ed3e2be6..205224b9 100644
--- a/components/bidding/manage/bidding-detail-vendor-create-dialog.tsx
+++ b/components/bidding/manage/bidding-detail-vendor-create-dialog.tsx
@@ -39,6 +39,8 @@ interface BiddingDetailVendorCreateDialogProps {
   open: boolean
   onOpenChange: (open: boolean) => void
   onSuccess: () => void
+  isSingleAwardBidding?: boolean
+  currentVendorCount?: number
 }
 
 interface Vendor {
@@ -57,7 +59,9 @@ export function BiddingDetailVendorCreateDialog({
   biddingId,
   open,
   onOpenChange,
-  onSuccess
+  onSuccess,
+  isSingleAwardBidding = false,
+  currentVendorCount = 0
 }: BiddingDetailVendorCreateDialogProps) {
   const { toast } = useToast()
   const [isPending, startTransition] = useTransition()
@@ -100,6 +104,16 @@ export function BiddingDetailVendorCreateDialog({
 
   // 벤더 추가
   const handleAddVendor = (vendor: Vendor) => {
+    // 단수 입찰이고 이미 업체가 선택되었거나 기존 업체가 있는 경우 제한
+    if (isSingleAwardBidding && (selectedVendorsWithQuestion.length > 0 || currentVendorCount > 0)) {
+      toast({
+        title: '제한 사항',
+        description: '단수 입찰의 경우 1개 업체만 등록 가능합니다.',
+        variant: 'destructive',
+      })
+      return
+    }
+
     if (!selectedVendorsWithQuestion.find(v => v.vendor.id === vendor.id)) {
       setSelectedVendorsWithQuestion([
         ...selectedVendorsWithQuestion,