diff --git a/frontend/components/pop/hardcoded/inbound/InboundCart.tsx b/frontend/components/pop/hardcoded/inbound/InboundCart.tsx
index 47de2029..36efb141 100644
--- a/frontend/components/pop/hardcoded/inbound/InboundCart.tsx
+++ b/frontend/components/pop/hardcoded/inbound/InboundCart.tsx
@@ -22,6 +22,8 @@ interface Warehouse {
 
 export interface CartItem {
   id: string;
+  /** cart_items 테이블의 PK (UUID) — DB 삭제용 */
+  dbId?: string;
   /** purchase_detail or purchase_order_mng */
   source_table: string;
   /** PK of the source row */
diff --git a/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx b/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
index 66ab2737..669f15c0 100644
--- a/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
+++ b/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
@@ -108,8 +108,7 @@ export function InboundCartPage() {
           screen_id: "pop-purchase-inbound",
           status: "pending",
           pageSize: 100,
-          sortColumn: "created_date",
-          sortDirection: "desc",
+          orderBy: "created_date DESC",
         },
       });
 
@@ -190,18 +189,8 @@ export function InboundCartPage() {
   }, []);
 
   /* ------------------------------------------------------------------ */
-  /* Generate inbound number                                             */
+  /* Generate inbound number (확정 시점에만 호출 — 동시접속 충돌 방지)    */
   /* ------------------------------------------------------------------ */
-  const fetchInboundNumber = useCallback(async () => {
-    try {
-      const res = await apiClient.get("/receiving/generate-number");
-      if (res.data?.success && res.data?.data) {
-        setInboundNumber(res.data.data);
-      }
-    } catch {
-      /* generate on confirm as fallback */
-    }
-  }, []);
 
   /* ------------------------------------------------------------------ */
   /* Initial load                                                        */
@@ -211,8 +200,7 @@ export function InboundCartPage() {
     fetchedRef.current = true;
     fetchCartItems();
     fetchWarehouses();
-    fetchInboundNumber();
-  }, [fetchCartItems, fetchWarehouses, fetchInboundNumber]);
+  }, [fetchCartItems, fetchWarehouses]);
 
   /* ------------------------------------------------------------------ */
   /* Selection                                                           */
@@ -376,17 +364,16 @@ export function InboundCartPage() {
     setResultMsg(null);
 
     try {
-      // Use existing inbound number or generate new one
-      let finalNumber = inboundNumber;
-      if (!finalNumber) {
-        try {
-          const numRes = await apiClient.get("/receiving/generate-number");
-          if (numRes.data?.success && numRes.data?.data) {
-            finalNumber = numRes.data.data;
-          }
-        } catch {
-          /* backend will handle */
+      // 확정 시점에 채번 (동시접속 충돌 방지)
+      let finalNumber = "";
+      try {
+        const numRes = await apiClient.get("/receiving/generate-number");
+        if (numRes.data?.success && numRes.data?.data) {
+          finalNumber = numRes.data.data;
+          setInboundNumber(finalNumber);
         }
+      } catch {
+        /* backend will handle */
       }
 
       // POST /api/receiving -- same payload structure as PC
@@ -559,11 +546,9 @@ export function InboundCartPage() {
               | {selectedWarehouseName}
             </span>
           )}
-          {inboundNumber && (
-            <span className="ml-auto text-[11px] font-mono text-gray-500">
-              {inboundNumber}
-            </span>
-          )}
+          <span className="ml-auto text-[11px] font-mono text-gray-400">
+            {inboundNumber || "확정 시 자동생성"}
+          </span>
         </div>
 
         {/* Info fields: 3 columns */}
@@ -609,13 +594,17 @@ export function InboundCartPage() {
             </button>
           </div>
 
-          {/* Inbound number (readonly) */}
+          {/* Inbound number (readonly — 확정 시점에 채번) */}
           <div>
             <label className="text-[11px] font-semibold text-gray-400 mb-1 block">
               입고번호
             </label>
-            <div className="w-full px-3 py-2.5 border border-gray-200 rounded-lg text-sm bg-gray-50 text-gray-600 font-mono">
-              {inboundNumber || "자동 채번"}
+            <div className="w-full px-3 py-2.5 border border-gray-200 rounded-lg text-sm bg-gray-50 font-mono">
+              {inboundNumber ? (
+                <span className="text-gray-700">{inboundNumber}</span>
+              ) : (
+                <span className="text-gray-400">확정 시 자동생성</span>
+              )}
             </div>
           </div>
         </div>
diff --git a/frontend/components/pop/hardcoded/inbound/PurchaseInbound.tsx b/frontend/components/pop/hardcoded/inbound/PurchaseInbound.tsx
index ec39f9cd..1d4f1dc0 100644
--- a/frontend/components/pop/hardcoded/inbound/PurchaseInbound.tsx
+++ b/frontend/components/pop/hardcoded/inbound/PurchaseInbound.tsx
@@ -238,8 +238,10 @@ export function PurchaseInbound({ onCartCountChange }: PurchaseInboundProps = {}
     const order = numpadTarget;
     if (cartItems.find((c) => c.id === order.id)) return;
 
+    const cartDbId = crypto.randomUUID();
     const newItem: CartItem = {
       id: order.id,
+      dbId: cartDbId,
       source_table: order.source_table,
       source_id: order.id,
       purchase_no: order.purchase_no,
@@ -262,11 +264,12 @@ export function PurchaseInbound({ onCartCountChange }: PurchaseInboundProps = {}
     setNumpadTarget(null);
 
     // Save to cart_items table (background, non-blocking)
-    // cart_items 실제 컬럼: screen_id, source_table, row_key, row_data, quantity, unit
+    // cart_items.id는 NOT NULL + 자동생성 없음 → 프론트에서 UUID 생성 필수
     apiClient.post("/pop/execute-action", {
       tasks: [{ type: "cart-save" }],
       cartChanges: {
         toCreate: [{
+          id: cartDbId,
           screen_id: "pop-purchase-inbound",
           source_table: order.source_table,
           row_key: order.id,
@@ -281,9 +284,12 @@ export function PurchaseInbound({ onCartCountChange }: PurchaseInboundProps = {}
             material: order.material || "",
             order_qty: order.order_qty,
             remain_qty: order.remain_qty,
+            order_date: order.order_date || "",
+            inspection_type: order.inspection_type,
           }),
           quantity: String(Math.min(qty, order.remain_qty)),
           unit: "EA",
+          package_entries: packages.length > 0 ? JSON.stringify(packages) : null,
           status: "pending",
         }],
       },
@@ -294,14 +300,17 @@ export function PurchaseInbound({ onCartCountChange }: PurchaseInboundProps = {}
 
   /* Remove from cart (cancel) */
   const handleRemoveFromCart = (id: string) => {
+    const item = cartItems.find((c) => c.id === id);
     setCartItems((prev) => prev.filter((c) => c.id !== id));
-    // Delete from cart_items DB (background)
-    apiClient.post("/pop/execute-action", {
-      tasks: [{ type: "cart-save" }],
-      cartChanges: {
-        toDelete: [id],
-      },
-    }).catch(() => {});
+    // Delete from cart_items DB (background) — dbId(UUID)로 삭제
+    if (item?.dbId) {
+      apiClient.post("/pop/execute-action", {
+        tasks: [{ type: "cart-save" }],
+        cartChanges: {
+          toDelete: [item.dbId],
+        },
+      }).catch(() => {});
+    }
   };
 
   /* Search */