diff --git a/backend-node/src/services/eventTriggerService.ts b/backend-node/src/services/eventTriggerService.ts
index a5437b7d..254149f7 100644
--- a/backend-node/src/services/eventTriggerService.ts
+++ b/backend-node/src/services/eventTriggerService.ts
@@ -424,14 +424,14 @@ export class EventTriggerService {
         await this.executeUpdateAction(
           action.targetTable,
           targetData,
-          null // 액션별 조건은 이미 평가했으므로 WHERE 조건은 null
+          undefined // 액션별 조건은 이미 평가했으므로 WHERE 조건은 undefined
         );
         break;
       case "delete":
         await this.executeDeleteAction(
           action.targetTable,
           targetData,
-          null // 액션별 조건은 이미 평가했으므로 WHERE 조건은 null
+          undefined // 액션별 조건은 이미 평가했으므로 WHERE 조건은 undefined
         );
         break;
       case "upsert":
diff --git a/frontend/components/dataflow/ConnectionSetupModal.tsx b/frontend/components/dataflow/ConnectionSetupModal.tsx
index 9609782d..3b1cae8e 100644
--- a/frontend/components/dataflow/ConnectionSetupModal.tsx
+++ b/frontend/components/dataflow/ConnectionSetupModal.tsx
@@ -70,9 +70,9 @@ interface DataSaveSettings {
     }>;
     fieldMappings: Array<{
       sourceTable?: string;
-      sourceField: string;
+  sourceField: string;
       targetTable?: string;
-      targetField: string;
+  targetField: string;
       defaultValue?: string;
       transformFunction?: string;
     }>;
@@ -675,7 +675,7 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
             </div>
             <div className="space-y-4">
               {/* 액션 목록 */}
-              <div>
+                <div>
                 <div className="mb-2 flex items-center justify-between">
                   <Label className="text-sm font-medium">저장 액션</Label>
                   <Button
@@ -715,7 +715,7 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                     {dataSaveSettings.actions.map((action, actionIndex) => (
                       <div key={action.id} className="rounded border bg-white p-3">
                         <div className="mb-3 flex items-center justify-between">
-                          <Input
+                  <Input
                             value={action.name}
                             onChange={(e) => {
                               const newActions = [...dataSaveSettings.actions];
@@ -736,11 +736,11 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                           >
                             <Trash2 className="h-3 w-3" />
                           </Button>
-                        </div>
+                </div>
 
                         <div className="grid grid-cols-1 gap-3">
                           {/* 액션 타입 */}
-                          <div>
+                <div>
                             <Label className="text-xs">액션 타입</Label>
                             <Select
                               value={action.actionType}
@@ -767,7 +767,7 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                         <div className="mt-3">
                           <details className="group">
                             <summary className="flex cursor-pointer items-center justify-between rounded border p-2 text-xs font-medium text-gray-700 hover:bg-gray-50 hover:text-gray-900">
-                              <div className="flex items-center gap-2">
+                  <div className="flex items-center gap-2">
                                 🔍 이 액션의 실행 조건 (선택사항)
                                 {action.conditions && action.conditions.length > 0 && (
                                   <span className="rounded-full bg-blue-100 px-2 py-0.5 text-xs text-blue-700">
@@ -893,7 +893,7 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                                           dataType.includes("date")
                                         ) {
                                           return (
-                                            <Input
+                    <Input
                                               type="datetime-local"
                                               value={condition.value}
                                               onChange={(e) => {
@@ -997,12 +997,12 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                                         className="h-6 w-6 p-0"
                                       >
                                         <Trash2 className="h-2 w-2" />
-                                      </Button>
-                                    </div>
+                    </Button>
+                  </div>
                                   ))}
-                                </div>
+                </div>
                               )}
-                            </div>
+              </div>
                           </details>
                         </div>
 
@@ -1043,7 +1043,7 @@ export const ConnectionSetupModal: React.FC<ConnectionSetupModalProps> = ({
                             <div className="mt-2 space-y-2 border-l-2 border-gray-100 pl-4">
                               <Label className="text-xs font-medium">데이터 분할 설정</Label>
                               <div className="mt-1 grid grid-cols-3 gap-2">
-                                <div>
+              <div>
                                   <Label className="text-xs text-gray-500">분할할 필드</Label>
                                   <Select
                                     value={action.splitConfig?.sourceField || ""}