diff --git a/src/app/[locale]/(protected)/sales/client-management-sales-admin/page.tsx b/src/app/[locale]/(protected)/sales/client-management-sales-admin/page.tsx
index c605c683..07fbbe00 100644
--- a/src/app/[locale]/(protected)/sales/client-management-sales-admin/page.tsx
+++ b/src/app/[locale]/(protected)/sales/client-management-sales-admin/page.tsx
@@ -17,11 +17,9 @@
 
 import { useState, useRef, useEffect, useCallback, useTransition, useMemo } from "react";
 import { useRouter, useSearchParams } from "next/navigation";
-import { ClientDetailClientV2 } from '@/components/clients/ClientDetailClientV2';
 import { useClientList, Client } from "@/hooks/useClientList";
 import {
   Building2,
-  Plus,
   Users,
   CheckCircle,
   Loader2,
@@ -43,7 +41,7 @@ import {
 } from "@/components/ui/table";
 import { Checkbox } from "@/components/ui/checkbox";
 import { ListMobileCard, InfoField } from "@/components/organisms/MobileCard";
-import { DeleteConfirmDialog } from "@/components/ui/confirm-dialog";
+// DeleteConfirmDialog 제거 — 판매관리 거래처는 읽기 전용
 import { sendNewClientNotification } from "@/lib/actions/fcm";
 import { isNextRedirectError } from "@/lib/utils/redirect-error";
 
@@ -359,9 +357,11 @@ export default function CustomerAccountManagementPage() {
     });
   }, []);
 
-  // mode=new 처리 (모든 훅 호출 후에 조건부 return - React 훅 규칙 준수)
+  // mode=new 차단 — 등록은 회계관리>거래처관리에서만 가능
   if (mode === 'new') {
-    return <ClientDetailClientV2 />;
+    toast.error('거래처 등록은 회계관리 > 거래처관리에서 가능합니다.');
+    router.push('/sales/client-management-sales-admin');
+    return null;
   }
 
   // 상태 뱃지
@@ -588,53 +588,13 @@ export default function CustomerAccountManagementPage() {
           <Bell className="w-4 h-4 mr-2" />
           신규업체
         </Button>
-        <Button onClick={handleAddNew}>
-          <Plus className="w-4 h-4 mr-2" />
-          거래처 등록
-        </Button>
       </div>
     ),
 
     renderTableRow,
     renderMobileCard,
 
-    renderDialogs: () => (
-      <>
-        {/* 삭제 확인 다이얼로그 */}
-        <DeleteConfirmDialog
-          open={isDeleteDialogOpen}
-          onOpenChange={setIsDeleteDialogOpen}
-          onConfirm={handleConfirmDelete}
-          title="거래처 삭제 확인"
-          description={
-            <>
-              {deleteTargetId
-                ? `거래처: ${clients.find((c) => c.id === deleteTargetId)?.name || deleteTargetId}`
-                : ""}
-              <br />
-              이 거래처를 삭제하시겠습니까? 삭제된 데이터는 복구할 수 없습니다.
-            </>
-          }
-        />
-
-        {/* 일괄 삭제 확인 다이얼로그 */}
-        <DeleteConfirmDialog
-          open={isBulkDeleteDialogOpen}
-          onOpenChange={setIsBulkDeleteDialogOpen}
-          onConfirm={handleConfirmBulkDelete}
-          title="일괄 삭제 확인"
-          description={
-            <>
-              선택한 <strong>{selectedItems.size}개</strong>의 거래처를 삭제하시겠습니까?
-              <br />
-              <span className="text-muted-foreground text-sm">
-                삭제된 데이터는 복구할 수 없습니다.
-              </span>
-            </>
-          }
-        />
-      </>
-    ),
+    // 판매관리 거래처는 읽기 전용 — 삭제 다이얼로그 불필요
   };
 
   return (
diff --git a/src/components/clients/ClientDetailClientV2.tsx b/src/components/clients/ClientDetailClientV2.tsx
index c333dd1f..a17d7703 100644
--- a/src/components/clients/ClientDetailClientV2.tsx
+++ b/src/components/clients/ClientDetailClientV2.tsx
@@ -7,62 +7,39 @@
  * 클라이언트 사이드 데이터 페칭 (useClientList 훅 활용)
  */
 
-import { useState, useEffect, useCallback, useRef } from 'react';
-import { useRouter, useSearchParams } from 'next/navigation';
+import { useState, useEffect, useCallback } from 'react';
+import { useRouter } from 'next/navigation';
 import { IntegratedDetailTemplate } from '@/components/templates/IntegratedDetailTemplate';
-import type { DetailMode, IntegratedDetailTemplateRef } from '@/components/templates/IntegratedDetailTemplate/types';
-import type { Client, ClientFormData } from '@/hooks/useClientList';
+import type { DetailMode } from '@/components/templates/IntegratedDetailTemplate/types';
+import type { Client } from '@/hooks/useClientList';
 import { useClientList } from '@/hooks/useClientList';
 import { clientDetailConfig } from './clientDetailConfig';
 import { toast } from 'sonner';
-import { useDevFillContext } from '@/components/dev/DevFillContext';
-import { generateClientData } from '@/components/dev/generators/clientData';
 
 interface ClientDetailClientV2Props {
   clientId?: string;
   initialMode?: DetailMode;
 }
 
-// 8자리 영문+숫자 코드 생성
-function generateCode(): string {
-  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
-  let result = '';
-  for (let i = 0; i < 8; i++) {
-    result += chars.charAt(Math.floor(Math.random() * chars.length));
-  }
-  return result;
-}
-
-export function ClientDetailClientV2({ clientId, initialMode }: ClientDetailClientV2Props) {
+export function ClientDetailClientV2({ clientId }: ClientDetailClientV2Props) {
   const router = useRouter();
-  const searchParams = useSearchParams();
-  const { fetchClient, createClient, updateClient, deleteClient } = useClientList();
-  const templateRef = useRef<IntegratedDetailTemplateRef>(null);
-  const { isEnabled, registerFillForm, unregisterFillForm } = useDevFillContext();
+  const { fetchClient } = useClientList();
 
-  // URL 쿼리에서 모드 결정
-  const modeFromQuery = searchParams.get('mode') as DetailMode | null;
   const isNewMode = !clientId || clientId === 'new';
 
-  const [mode, setMode] = useState<DetailMode>(() => {
-    if (isNewMode) return 'create';
-    if (initialMode) return initialMode;
-    if (modeFromQuery === 'edit') return 'edit';
-    return 'view';
-  });
+  // 판매관리 거래처는 읽기 전용 — 수정/등록은 회계관리>거래처관리에서만 가능
+  const [mode] = useState<DetailMode>('view');
 
   const [clientData, setClientData] = useState<Client | null>(null);
   const [isLoading, setIsLoading] = useState(!isNewMode);
-  const [generatedCode, setGeneratedCode] = useState<string>('');
 
   // 데이터 로드
   useEffect(() => {
     const loadData = async () => {
+      // 신규 등록 차단 — 회계관리>거래처관리에서만 가능
       if (isNewMode) {
-        // 신규 등록 시 코드 생성
-        const code = generateCode();
-        setGeneratedCode(code);
-        setIsLoading(false);
+        toast.error('거래처 등록은 회계관리 > 거래처관리에서 가능합니다.');
+        router.push(clientDetailConfig.basePath);
         return;
       }
 
@@ -87,164 +64,32 @@ export function ClientDetailClientV2({ clientId, initialMode }: ClientDetailClie
     loadData();
   }, [clientId, isNewMode, router, fetchClient]);
 
-  // URL 쿼리 변경 감지
-  useEffect(() => {
-    if (!isNewMode && modeFromQuery === 'edit') {
-      setMode('edit');
-    } else if (!isNewMode && !modeFromQuery) {
-      setMode('view');
-    }
-  }, [modeFromQuery, isNewMode]);
-
-  // DevFill 등록 (신규 등록 모드일 때만)
-  useEffect(() => {
-    if (!isEnabled || !isNewMode) return;
-
-    const handleDevFill = () => {
-      const data = generateClientData();
-      if (templateRef.current) {
-        templateRef.current.setFormData(data as unknown as Record<string, unknown>);
-      }
-    };
-
-    registerFillForm('client', handleDevFill);
-
-    return () => {
-      unregisterFillForm('client');
-    };
-  }, [isEnabled, isNewMode, registerFillForm, unregisterFillForm]);
-
-  // 모드 변경 핸들러
+  // 모드 변경 차단 — 읽기 전용
   const handleModeChange = useCallback(
-    (newMode: DetailMode) => {
-      setMode(newMode);
-      if (newMode === 'edit' && clientId) {
-        router.push(`${clientDetailConfig.basePath}/${clientId}?mode=edit`);
-      } else if (newMode === 'view' && clientId) {
-        router.push(`${clientDetailConfig.basePath}/${clientId}?mode=view`);
-      }
+    (_newMode: DetailMode) => {
+      toast.info('거래처 수정은 회계관리 > 거래처관리에서 가능합니다.');
     },
-    [router, clientId]
+    []
   );
 
-  // 저장 핸들러
-  const handleSubmit = useCallback(
-    async (formData: Record<string, unknown>) => {
-      try {
-        // formData를 ClientFormData로 변환
-        const clientFormData: ClientFormData = {
-          clientCode: (formData.clientCode as string) || generatedCode,
-          name: formData.name as string,
-          businessNo: formData.businessNo as string,
-          representative: formData.representative as string,
-          phone: formData.phone as string,
-          address: formData.address as string,
-          email: formData.email as string,
-          businessType: formData.businessType as string,
-          businessItem: formData.businessItem as string,
-          isActive: formData.isActive === 'true',
-          clientType: (formData.clientType as ClientFormData['clientType']) || '매입',
-          mobile: formData.mobile as string,
-          fax: formData.fax as string,
-          managerName: formData.managerName as string,
-          managerTel: formData.managerTel as string,
-          systemManager: formData.systemManager as string,
-          accountId: formData.accountId as string || '',
-          accountPassword: formData.accountPassword as string || '',
-          purchasePaymentDay: '말일',
-          salesPaymentDay: '말일',
-          taxAgreement: false,
-          taxAmount: '',
-          taxStartDate: '',
-          taxEndDate: '',
-          badDebt: false,
-          badDebtAmount: '',
-          badDebtReceiveDate: '',
-          badDebtEndDate: '',
-          badDebtProgress: '',
-          memo: formData.memo as string || '',
-        };
-
-        if (isNewMode) {
-          const result = await createClient(clientFormData);
-          if (result) {
-            toast.success('거래처가 등록되었습니다.');
-            router.push(clientDetailConfig.basePath);
-            return { success: true };
-          }
-          return { success: false, error: '거래처 등록에 실패했습니다.' };
-        } else {
-          const result = await updateClient(clientId!, clientFormData);
-          if (result) {
-            toast.success('거래처가 수정되었습니다.');
-            router.push(`${clientDetailConfig.basePath}/${clientId}?mode=view`);
-            return { success: true };
-          }
-          return { success: false, error: '거래처 수정에 실패했습니다.' };
-        }
-      } catch (error) {
-        console.error('저장 실패:', error);
-        return { success: false, error: error instanceof Error ? error.message : '저장 중 오류가 발생했습니다.' };
-      }
-    },
-    [isNewMode, clientId, generatedCode, router, createClient, updateClient]
-  );
-
-  // 삭제 핸들러
-  const handleDelete = useCallback(
-    async (id: string | number) => {
-      try {
-        const result = await deleteClient(String(id));
-        if (result) {
-          toast.success('거래처가 삭제되었습니다.');
-          router.push(clientDetailConfig.basePath);
-          return { success: true };
-        }
-        return { success: false, error: '거래처 삭제에 실패했습니다.' };
-      } catch (error) {
-        console.error('삭제 실패:', error);
-        return { success: false, error: error instanceof Error ? error.message : '삭제 중 오류가 발생했습니다.' };
-      }
-    },
-    [router, deleteClient]
-  );
-
-  // 취소 핸들러
+  // 취소(목록으로) 핸들러
   const handleCancel = useCallback(() => {
-    if (isNewMode) {
-      router.push(clientDetailConfig.basePath);
-    } else {
-      setMode('view');
-      router.push(`${clientDetailConfig.basePath}/${clientId}?mode=view`);
-    }
-  }, [router, clientId, isNewMode]);
-
-  // 초기 데이터 (신규 등록 시 코드 포함)
-  const initialData = isNewMode
-    ? ({ code: generatedCode } as Client)
-    : clientData || undefined;
+    router.push(clientDetailConfig.basePath);
+  }, [router]);
 
   // 타이틀 동적 설정
   const dynamicConfig = {
     ...clientDetailConfig,
-    title:
-      mode === 'create'
-        ? '거래처'
-        : mode === 'edit'
-          ? clientData?.name || '거래처'
-          : clientData?.name || '거래처 상세',
+    title: clientData?.name || '거래처 상세',
   };
 
   return (
     <IntegratedDetailTemplate
-      ref={templateRef}
       config={dynamicConfig}
       mode={mode}
-      initialData={initialData as Record<string, unknown> | undefined}
+      initialData={clientData as unknown as Record<string, unknown> | undefined}
       itemId={clientId}
       isLoading={isLoading}
-      onSubmit={handleSubmit}
-      onDelete={handleDelete}
       onCancel={handleCancel}
       onModeChange={handleModeChange}
     />
diff --git a/src/components/clients/clientDetailConfig.ts b/src/components/clients/clientDetailConfig.ts
index ffcb080d..a43fe825 100644
--- a/src/components/clients/clientDetailConfig.ts
+++ b/src/components/clients/clientDetailConfig.ts
@@ -202,16 +202,12 @@ export const clientDetailConfig: DetailConfig<Client> = {
   actions: {
     submitLabel: '저장',
     cancelLabel: '취소',
-    showDelete: true,
+    showDelete: false,
     deleteLabel: '삭제',
-    showEdit: true,
+    showEdit: false,
     editLabel: '수정',
     showBack: true,
     backLabel: '목록',
-    deleteConfirmMessage: {
-      title: '거래처 삭제',
-      description: '이 거래처를 삭제하시겠습니까? 삭제된 데이터는 복구할 수 없습니다.',
-    },
   },
   transformInitialData: (data: Client) => ({
     businessNo: data.businessNo || '',