diff --git a/LOGICAL_RELATIONSHIPS.md b/LOGICAL_RELATIONSHIPS.md
index 12cf164..973dd58 100644
--- a/LOGICAL_RELATIONSHIPS.md
+++ b/LOGICAL_RELATIONSHIPS.md
@@ -1,6 +1,6 @@
 # 논리적 데이터베이스 관계 문서
 
-> **자동 생성**: 2026-01-29 00:51:16
+> **자동 생성**: 2026-01-29 19:41:35
 > **소스**: Eloquent 모델 관계 분석
 
 ## 📊 모델별 관계 현황
@@ -907,6 +907,7 @@ ### stocks
 - **item()**: belongsTo → `items`
 - **creator()**: belongsTo → `users`
 - **lots()**: hasMany → `stock_lots`
+- **transactions()**: hasMany → `stock_transactions`
 
 ### stock_lots
 **모델**: `App\Models\Tenants\StockLot`
@@ -915,6 +916,13 @@ ### stock_lots
 - **receiving()**: belongsTo → `receivings`
 - **creator()**: belongsTo → `users`
 
+### stock_transactions
+**모델**: `App\Models\Tenants\StockTransaction`
+
+- **stock()**: belongsTo → `stocks`
+- **stockLot()**: belongsTo → `stock_lots`
+- **creator()**: belongsTo → `users`
+
 ### subscriptions
 **모델**: `App\Models\Tenants\Subscription`
 
diff --git a/app/Services/Quote/FormulaEvaluatorService.php b/app/Services/Quote/FormulaEvaluatorService.php
index d3942d8..e679490 100644
--- a/app/Services/Quote/FormulaEvaluatorService.php
+++ b/app/Services/Quote/FormulaEvaluatorService.php
@@ -1596,31 +1596,34 @@ private function calculateKyungdongBom(
                 ['var' => 'QTY', 'desc' => '수량', 'value' => $QTY, 'unit' => 'EA'],
                 ['var' => 'bracket_inch', 'desc' => '브라켓 인치', 'value' => $bracketInch, 'unit' => '인치'],
                 ['var' => 'product_type', 'desc' => '제품 타입', 'value' => $productType, 'unit' => ''],
+                ['var' => 'product_model', 'desc' => '모델코드', 'value' => $inputVariables['product_model'] ?? 'KSS01', 'unit' => ''],
+                ['var' => 'finishing_type', 'desc' => '마감타입', 'value' => $inputVariables['finishing_type'] ?? 'SUS', 'unit' => ''],
+                ['var' => 'installation_type', 'desc' => '설치타입', 'value' => $inputVariables['installation_type'] ?? '벽면형', 'unit' => ''],
             ],
         ]);
 
-        // Step 2: 완제품 조회
+        // Step 2: 완제품 조회 (경동 전용 계산은 완제품 없이도 동작)
         $finishedGoods = $this->getItemDetails($finishedGoodsCode, $tenantId);
 
-        if (! $finishedGoods) {
+        if ($finishedGoods) {
+            $this->addDebugStep(2, '완제품선택', [
+                'code' => $finishedGoods['code'],
+                'name' => $finishedGoods['name'],
+                'item_category' => $finishedGoods['item_category'] ?? 'N/A',
+            ]);
+        } else {
+            // 경동 전용: 완제품 미등록 상태에서도 견적 계산 진행
+            $finishedGoods = [
+                'code' => $finishedGoodsCode,
+                'name' => $finishedGoodsCode,
+                'item_category' => 'estimate',
+            ];
             $this->addDebugStep(2, '완제품선택', [
                 'code' => $finishedGoodsCode,
-                'error' => '완제품을 찾을 수 없습니다.',
+                'note' => '경동 전용 계산 - 완제품 미등록 상태로 진행',
             ]);
-
-            return [
-                'success' => false,
-                'error' => __('error.finished_goods_not_found', ['code' => $finishedGoodsCode]),
-                'debug_steps' => $this->debugSteps,
-            ];
         }
 
-        $this->addDebugStep(2, '완제품선택', [
-            'code' => $finishedGoods['code'],
-            'name' => $finishedGoods['name'],
-            'item_category' => $finishedGoods['item_category'] ?? 'N/A',
-        ]);
-
         // KyungdongFormulaHandler 인스턴스 생성
         $handler = new KyungdongFormulaHandler;
 
@@ -1646,6 +1649,11 @@ private function calculateKyungdongBom(
         // 브라켓 크기 결정
         $bracketSize = $handler->calculateBracketSize($weight, $bracketInch);
 
+        // 핸들러가 필요한 키 보장 (inputVariables에서 전달되지 않으면 기본값)
+        $productModel = $inputVariables['product_model'] ?? 'KSS01';
+        $finishingType = $inputVariables['finishing_type'] ?? 'SUS';
+        $installationType = $inputVariables['installation_type'] ?? '벽면형';
+
         $calculatedVariables = array_merge($inputVariables, [
             'W0' => $W0,
             'H0' => $H0,
@@ -1658,6 +1666,9 @@ private function calculateKyungdongBom(
             'BRACKET_SIZE' => $bracketSize,
             'bracket_inch' => $bracketInch,
             'product_type' => $productType,
+            'product_model' => $productModel,
+            'finishing_type' => $finishingType,
+            'installation_type' => $installationType,
         ]);
 
         $this->addDebugStep(3, '변수계산', [