diff --git a/backend/order_api.py b/backend/order_api.py
index 88ba9ad..ff3b505 100644
--- a/backend/order_api.py
+++ b/backend/order_api.py
@@ -287,23 +287,30 @@ def submit_geoyoung_order(order: dict, dry_run: bool, cart_only: bool = True) ->
             
             geo_session = get_geo_session()
             
-            # 1단계: 모든 품목을 장바구니에 담기 (full_order, auto_confirm=False)
+            # 1단계: 모든 품목을 장바구니에 담기
             for item in items:
                 kd_code = item.get('kd_code') or item.get('drug_code')
                 order_qty = item['order_qty']
                 spec = item.get('specification', '')
+                item_internal_code = item.get('internal_code')  # 프론트에서 이미 선택한 품목
                 result = {}
                 
                 try:
-                    # 장바구니에만 담기 (주문 확정은 나중에 한번에)
-                    result = geo_session.full_order(
-                        kd_code=kd_code,
-                        quantity=order_qty,
-                        specification=spec if spec else None,
-                        check_stock=True,
-                        auto_confirm=False,  # 장바구니만!
-                        memo=f"자동주문 - {item.get('product_name', '')}"
-                    )
+                    if item_internal_code:
+                        # internal_code가 있으면 검색 없이 바로 장바구니 추가!
+                        result = geo_session.add_to_cart(item_internal_code, order_qty)
+                        if result.get('success'):
+                            result['product'] = {'internal_code': item_internal_code, 'name': item.get('product_name', '')}
+                    else:
+                        # internal_code 없으면 검색 후 장바구니 추가
+                        result = geo_session.full_order(
+                            kd_code=kd_code,
+                            quantity=order_qty,
+                            specification=spec if spec else None,
+                            check_stock=True,
+                            auto_confirm=False,
+                            memo=f"자동주문 - {item.get('product_name', '')}"
+                        )
                     
                     if result.get('success'):
                         status = 'success'