diff --git a/adminfront/src/features/users/UserDetailPage.tsx b/adminfront/src/features/users/UserDetailPage.tsx
index 0e7b67ef..9d8cb79c 100644
--- a/adminfront/src/features/users/UserDetailPage.tsx
+++ b/adminfront/src/features/users/UserDetailPage.tsx
@@ -123,6 +123,7 @@ function createEmptyAppointment(): AppointmentDraft {
     tenantId: "",
     tenantName: "",
     tenantSlug: "",
+    isPrimary: false,
     isOwner: false,
     jobTitle: "",
     position: "",
@@ -554,6 +555,15 @@ function UserDetailPage() {
     );
   };
 
+  const setPrimaryAppointment = (targetIndex: number) => {
+    setAdditionalAppointments((current) =>
+      current.map((appointment, index) => ({
+        ...appointment,
+        isPrimary: index === targetIndex,
+      })),
+    );
+  };
+
   const handleUserTypeChange = (value: string) => {
     const nextType = value as UserType;
     setUserType(nextType);
@@ -645,6 +655,9 @@ function UserDetailPage() {
         Array.isArray(rawAppointments)
           ? (rawAppointments as UserAppointment[]).map((appointment) => ({
               ...appointment,
+              isPrimary:
+                appointment.isPrimary === true ||
+                appointment.tenantId === primaryFromMetadata?.id,
               draftId: createDraftId(),
             }))
           : isUserHanmacFamily
@@ -654,6 +667,7 @@ function UserDetailPage() {
                   tenantId: tenant.id,
                   tenantName: tenant.name,
                   tenantSlug: tenant.slug,
+                  isPrimary: tenant.id === fallbackAppointment?.id,
                   isOwner:
                     metadata.primaryTenantIsOwner === true &&
                     tenant.id === fallbackAppointment?.id,
@@ -667,6 +681,7 @@ function UserDetailPage() {
                       tenantId: fallbackAppointment.id,
                       tenantName: fallbackAppointment.name,
                       tenantSlug: fallbackAppointment.slug,
+                      isPrimary: true,
                       isOwner: metadata.primaryTenantIsOwner === true,
                       jobTitle: user.jobTitle,
                       position: user.position,
@@ -781,7 +796,15 @@ function UserDetailPage() {
       payload.metadata = {
         ...metadata,
         additionalAppointments: appointments,
+        primaryTenantId: primaryAppointment?.tenantId,
+        primaryTenantName: primaryAppointment?.tenantName,
+        primaryTenantSlug: primaryAppointment?.tenantSlug,
+        primaryTenantIsOwner: primaryAppointment?.isOwner ?? false,
       };
+      payload.tenantSlug = primaryAppointment?.tenantSlug;
+      payload.primaryTenantId = primaryAppointment?.tenantId;
+      payload.primaryTenantName = primaryAppointment?.tenantName;
+      payload.primaryTenantIsOwner = primaryAppointment?.isOwner ?? false;
     }
 
     mutation.mutate(payload);
diff --git a/adminfront/src/features/users/UserListPage.tsx b/adminfront/src/features/users/UserListPage.tsx
index 7b064b2e..2123d30a 100644
--- a/adminfront/src/features/users/UserListPage.tsx
+++ b/adminfront/src/features/users/UserListPage.tsx
@@ -33,7 +33,13 @@ import {
   DialogTrigger,
 } from "../../components/ui/dialog";
 import { Input } from "../../components/ui/input";
-import { Switch } from "../../components/ui/switch";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "../../components/ui/select";
 import {
   Table,
   TableBody,
@@ -547,7 +553,7 @@ function UserListPage() {
                       />
                     </TableHead>
                     <TableHead
-                      className="min-w-[220px] cursor-pointer hover:bg-muted/50 transition-colors"
+                      className="min-w-[220px] whitespace-nowrap cursor-pointer hover:bg-muted/50 transition-colors"
                       onClick={() => requestSort("id")}
                     >
                       <div className="flex items-center">
@@ -556,7 +562,7 @@ function UserListPage() {
                       </div>
                     </TableHead>
                     <TableHead
-                      className="min-w-[200px] cursor-pointer hover:bg-muted/50 transition-colors"
+                      className="min-w-[200px] whitespace-nowrap cursor-pointer hover:bg-muted/50 transition-colors"
                       onClick={() => requestSort("name_email")}
                     >
                       <div className="flex items-center">
@@ -568,7 +574,7 @@ function UserListPage() {
                       </div>
                     </TableHead>
                     <TableHead
-                      className="cursor-pointer hover:bg-muted/50 transition-colors"
+                      className="whitespace-nowrap cursor-pointer hover:bg-muted/50 transition-colors"
                       onClick={() => requestSort("status")}
                     >
                       <div className="flex items-center">
@@ -577,7 +583,7 @@ function UserListPage() {
                       </div>
                     </TableHead>
                     <TableHead
-                      className="cursor-pointer hover:bg-muted/50 transition-colors"
+                      className="whitespace-nowrap cursor-pointer hover:bg-muted/50 transition-colors"
                       onClick={() => requestSort("tenant_dept")}
                     >
                       <div className="flex items-center">
@@ -594,7 +600,7 @@ function UserListPage() {
                         visibleColumns[field.key] !== false && (
                           <TableHead
                             key={field.key}
-                            className="uppercase cursor-pointer hover:bg-muted/50 transition-colors"
+                            className="whitespace-nowrap uppercase cursor-pointer hover:bg-muted/50 transition-colors"
                             onClick={() => requestSort(field.key)}
                           >
                             <div className="flex items-center">
@@ -605,7 +611,7 @@ function UserListPage() {
                         ),
                     )}
                     <TableHead
-                      className="cursor-pointer hover:bg-muted/50 transition-colors"
+                      className="whitespace-nowrap cursor-pointer hover:bg-muted/50 transition-colors"
                       onClick={() => requestSort("createdAt")}
                     >
                       <div className="flex items-center">
@@ -693,28 +699,42 @@ function UserListPage() {
                             )}
                           </div>
                         </div>
-                      </TableCell>{" "}
+                      </TableCell>
                       <TableCell>
                         <div className="flex items-center gap-2">
-                          <Switch
-                            checked={user.status === "active"}
-                            onCheckedChange={(checked) =>
+                          <Select
+                            value={user.status}
+                            onValueChange={(value: "active" | "inactive") =>
                               statusMutation.mutate({
                                 userId: user.id,
-                                status: checked ? "active" : "inactive",
+                                status: value,
                               })
                             }
                             disabled={
                               statusMutation.isPending ||
                               user.id === profile?.id
                             }
-                            aria-label={t(
-                              "ui.admin.users.list.toggle_status",
-                              "{{name}} 활성 상태",
-                              { name: user.name },
-                            )}
-                            data-testid={`user-status-toggle-${user.id}`}
-                          />
+                          >
+                            <SelectTrigger
+                              className="h-8 w-[112px]"
+                              aria-label={t(
+                                "ui.admin.users.list.toggle_status",
+                                "{{name}} 활성 상태",
+                                { name: user.name },
+                              )}
+                              data-testid={`user-status-select-${user.id}`}
+                            >
+                              <SelectValue />
+                            </SelectTrigger>
+                            <SelectContent>
+                              <SelectItem value="active">
+                                {t("ui.common.status.active", "활성")}
+                              </SelectItem>
+                              <SelectItem value="inactive">
+                                {t("ui.common.status.inactive", "비활성")}
+                              </SelectItem>
+                            </SelectContent>
+                          </Select>
                           <span className="text-sm text-muted-foreground">
                             {t(`ui.common.status.${user.status}`, user.status)}
                           </span>
diff --git a/adminfront/src/locales/template.toml b/adminfront/src/locales/template.toml
index 79844871..d2b06aea 100644
--- a/adminfront/src/locales/template.toml
+++ b/adminfront/src/locales/template.toml
@@ -131,12 +131,17 @@ empty = ""
 import_error = ""
 import_success = ""
 loading = ""
+no_results = ""
 subtitle = ""
 
 [msg.admin.groups.members]
+add_modal_desc = ""
 add_success = ""
+all_added = ""
 count = ""
 empty = ""
+move_modal_desc = ""
+move_success = ""
 remove_confirm = ""
 remove_success = ""
 title = ""
@@ -234,6 +239,9 @@ subtitle = ""
 desc = ""
 empty = ""
 limit_notice = ""
+remove_confirm = ""
+remove_error = ""
+remove_success = ""
 
 [msg.admin.tenants.registry]
 count = ""
@@ -250,6 +258,7 @@ empty = ""
 subtitle = ""
 
 [msg.admin.users]
+confirm_remove_org = ""
 export_error = ""
 status_error = ""
 
@@ -827,8 +836,11 @@ unit_level_placeholder = ""
 title = ""
 
 [ui.admin.groups.members]
+add_modal_title = ""
+move_modal_title = ""
 
 [ui.admin.groups.members.table]
+actions = ""
 email = ""
 name = ""
 remove = ""
@@ -985,8 +997,12 @@ search_placeholder = ""
 select_placeholder = ""
 
 [ui.admin.tenants.members]
+add_existing = ""
+create_new = ""
 descendants = ""
 direct = ""
+remove = ""
+view_profile = ""
 
 [msg.admin.apikeys.registry]
 count = ""
@@ -1013,6 +1029,7 @@ total = ""
 total_label = ""
 
 [ui.admin.tenants.members.table]
+actions = ""
 email = ""
 name = ""
 role = ""
diff --git a/devfront/src/features/clients/ClientsPage.tsx b/devfront/src/features/clients/ClientsPage.tsx
index bb0ebbe6..5657fb42 100644
--- a/devfront/src/features/clients/ClientsPage.tsx
+++ b/devfront/src/features/clients/ClientsPage.tsx
@@ -1,12 +1,6 @@
 import { useMutation, useQuery } from "@tanstack/react-query";
 import type { AxiosError } from "axios";
-import {
-  BookOpenText,
-  Filter,
-  Plus,
-  Search,
-  X,
-} from "lucide-react";
+import { BookOpenText, Filter, Plus, Search, X } from "lucide-react";
 import { useEffect, useState } from "react";
 import { useAuth } from "react-oidc-context";
 import { Link, useNavigate } from "react-router-dom";
diff --git a/devfront/src/features/clients/components/ClientLogo.tsx b/devfront/src/features/clients/components/ClientLogo.tsx
index 0c7b0a56..397a1d99 100644
--- a/devfront/src/features/clients/components/ClientLogo.tsx
+++ b/devfront/src/features/clients/components/ClientLogo.tsx
@@ -1,6 +1,10 @@
 import { ServerCog, ShieldHalf } from "lucide-react";
 import { useMemo, useState } from "react";
-import { Avatar, AvatarFallback, AvatarImage } from "../../../components/ui/avatar";
+import {
+  Avatar,
+  AvatarFallback,
+  AvatarImage,
+} from "../../../components/ui/avatar";
 import type { ClientSummary, ClientType } from "../../../lib/devApi";
 import { t } from "../../../lib/i18n";
 
@@ -28,7 +32,10 @@ function TypeFallbackIcon({ type }: { type: ClientType }) {
 
 export function ClientLogo({ client }: ClientLogoProps) {
   const [didImageFail, setDidImageFail] = useState(false);
-  const logoUrl = useMemo(() => readLogoUrl(client.metadata), [client.metadata]);
+  const logoUrl = useMemo(
+    () => readLogoUrl(client.metadata),
+    [client.metadata],
+  );
   const showImage = Boolean(logoUrl) && !didImageFail;
   const clientName = client.name || t("ui.dev.clients.untitled", "Untitled");
 
diff --git a/locales/en.toml b/locales/en.toml
index 2da95a9f..785df7d0 100644
--- a/locales/en.toml
+++ b/locales/en.toml
@@ -131,12 +131,17 @@ empty = "No organization units have been registered yet."
 import_error = "Import Error"
 import_success = "Import Success"
 loading = "Loading..."
+no_results = "No groups found."
 subtitle = "Manage departments and teams under the current tenant."
 
 [msg.admin.groups.members]
+add_modal_desc = "Search and select members to add from users in this tenant."
 add_success = "Member added successfully."
+all_added = "All tenant members are already in this group."
 count = "{{count}} members loaded."
 empty = "No members are assigned to this organization unit."
+move_modal_desc = "Select the target group to move the selected member."
+move_success = "Member moved successfully."
 remove_confirm = "Are you sure you want to remove this member?"
 remove_success = "Member removed successfully."
 title = "Member Management"
@@ -229,6 +234,9 @@ subtitle = "Set the basic tenant profile information."
 desc = "View the list of users belonging to this organization."
 empty = "No members found."
 limit_notice = "Showing members from the first 10 descendant organizations due to size limits."
+remove_confirm = "Are you sure you want to exclude '{{name}}' from this organization?"
+remove_error = "An error occurred while excluding from organization."
+remove_success = "Successfully excluded from organization."
 
 [msg.admin.tenants.owners]
 add_success = "Owner added successfully."
@@ -255,6 +263,7 @@ empty = "No child tenants are connected."
 subtitle = "Review and manage child tenants linked under this tenant."
 
 [msg.admin.users]
+confirm_remove_org = "Do you want to remove this user from the organization?"
 export_error = "Failed to export users."
 status_error = "Failed to update user status."
 
@@ -1026,8 +1035,11 @@ unit_level_placeholder = "Unit Level Placeholder"
 title = "User Groups"
 
 [ui.admin.groups.members]
+add_modal_title = "Add Member to Group"
+move_modal_title = "Move Department"
 
 [ui.admin.groups.members.table]
+actions = "ACTIONS"
 email = "Email"
 name = "Name"
 remove = "Remove"
@@ -1217,13 +1229,17 @@ self_delete_blocked = "You cannot delete your own account."
 title = "API Key Registry"
 
 [ui.admin.tenants.members]
+add_existing = "Assign Existing Member"
+create_new = "Create New Member"
 delete_selected = "Delete Selected"
+remove = "Exclude from Organization"
 view_org_chart = "View Full Org Chart"
 direct_label = "Direct"
 list_title = "Member Management"
 title = "Tenant Members ({{count}})"
 total = "Total"
 total_label = "Total"
+view_profile = "View Profile"
 
 [ui.admin.tenants.import_preview]
 candidates = "Candidates"
@@ -1235,6 +1251,7 @@ no_candidates = "No matching tenants found."
 title = "Import Preview"
 
 [ui.admin.tenants.members.table]
+actions = "ACTIONS"
 email = "EMAIL"
 name = "NAME"
 role = "ROLE"
diff --git a/locales/ko.toml b/locales/ko.toml
index fe5e2203..466eebcf 100644
--- a/locales/ko.toml
+++ b/locales/ko.toml
@@ -612,12 +612,17 @@ empty = "테넌트에 등록된 조직 단위가 없습니다."
 import_error = "가져오기 실패"
 import_success = "조직도가 임포트되었습니다."
 loading = "로딩 중..."
+no_results = "그룹이 없습니다."
 subtitle = "이 테넌트에 정의된 사용자 그룹 목록입니다."
 
 [msg.admin.groups.members]
+add_modal_desc = "이 테넌트에 속한 사용자 중 추가할 멤버를 검색하여 선택하세요."
 add_success = "구성원이 추가되었습니다."
+all_added = "모든 테넌트 멤버가 이미 이 그룹에 속해 있습니다."
 count = "{{count}} 명"
 empty = "멤버가 없습니다."
+move_modal_desc = "선택한 멤버를 이동할 대상 그룹을 선택하세요."
+move_success = "멤버가 이동되었습니다."
 remove_confirm = "제거하시겠습니까?"
 remove_success = "구성원이 제외되었습니다."
 title = "[{{name}}] 멤버 관리"
@@ -710,6 +715,9 @@ subtitle = "필수 정보만 입력해도 생성 가능합니다. Slug는 없으
 desc = "조직에 소속된 사용자 목록을 확인합니다."
 empty = "소속된 사용자가 없습니다."
 limit_notice = "하위 조직이 많아 상위 10개 조직의 멤버만 표시됩니다."
+remove_confirm = "'{{name}}'님을 이 조직에서 제외하시겠습니까?"
+remove_error = "조직에서 제외하는 중 오류가 발생했습니다."
+remove_success = "조직에서 제외되었습니다."
 
 [msg.admin.tenants.owners]
 add_success = "소유자가 추가되었습니다."
@@ -736,6 +744,7 @@ empty = "하위 테넌트가 없습니다."
 subtitle = "현재 테넌트 하위에 생성된 조직입니다."
 
 [msg.admin.users]
+confirm_remove_org = "이 조직에서 사용자를 제외하시겠습니까?"
 export_error = "사용자 내보내기에 실패했습니다."
 status_error = "사용자 상태 변경에 실패했습니다."
 
@@ -1505,8 +1514,11 @@ unit_level_placeholder = "예: 본부, 팀"
 title = "User Groups"
 
 [ui.admin.groups.members]
+add_modal_title = "그룹에 멤버 추가"
+move_modal_title = "부서 이동"
 
 [ui.admin.groups.members.table]
+actions = "ACTIONS"
 email = "이메일"
 name = "이름"
 remove = "제거"
@@ -1679,13 +1691,17 @@ status_error = "사용자 상태 변경에 실패했습니다: {{error}}"
 title = "API Key Registry"
 
 [ui.admin.tenants.members]
+add_existing = "기존 멤버 배정"
+create_new = "신규 멤버 생성"
 delete_selected = "선택 삭제"
+remove = "조직에서 제외"
 view_org_chart = "전체 조직도 보기"
 direct_label = "직속"
 list_title = "구성원 관리"
 title = "테넌트 구성원 ({{count}})"
 total = "전체"
 total_label = "전체"
+view_profile = "상세 정보"
 
 [ui.admin.tenants.import_preview]
 candidates = "후보"
@@ -1697,6 +1713,7 @@ no_candidates = "매칭 가능한 테넌트가 없습니다."
 title = "임포트 미리보기"
 
 [ui.admin.tenants.members.table]
+actions = "ACTIONS"
 email = "EMAIL"
 name = "NAME"
 role = "ROLE"
diff --git a/locales/template.toml b/locales/template.toml
index 0e24f3ec..5627cf0d 100644
--- a/locales/template.toml
+++ b/locales/template.toml
@@ -481,12 +481,17 @@ empty = ""
 import_error = ""
 import_success = ""
 loading = ""
+no_results = ""
 subtitle = ""
 
 [msg.admin.groups.members]
+add_modal_desc = ""
 add_success = ""
+all_added = ""
 count = ""
 empty = ""
+move_modal_desc = ""
+move_success = ""
 remove_confirm = ""
 remove_success = ""
 title = ""
@@ -579,6 +584,9 @@ subtitle = ""
 desc = ""
 empty = ""
 limit_notice = ""
+remove_confirm = ""
+remove_error = ""
+remove_success = ""
 
 [msg.admin.tenants.owners]
 add_success = ""
@@ -605,6 +613,7 @@ empty = ""
 subtitle = ""
 
 [msg.admin.users]
+confirm_remove_org = ""
 export_error = ""
 status_error = ""
 
@@ -1374,8 +1383,11 @@ unit_level_placeholder = ""
 title = ""
 
 [ui.admin.groups.members]
+add_modal_title = ""
+move_modal_title = ""
 
 [ui.admin.groups.members.table]
+actions = ""
 email = ""
 name = ""
 remove = ""
@@ -1521,13 +1533,17 @@ search_placeholder = ""
 select_placeholder = ""
 
 [ui.admin.tenants.members]
+add_existing = ""
+create_new = ""
 descendants = ""
 direct = ""
 direct_label = ""
 list_title = ""
+remove = ""
 title = ""
 total = ""
 total_label = ""
+view_profile = ""
 
 [msg.admin.apikeys.registry]
 count = ""
@@ -1554,15 +1570,20 @@ status_error = ""
 title = ""
 
 [ui.admin.tenants.members]
+add_existing = ""
+create_new = ""
 delete_selected = ""
+remove = ""
 view_org_chart = ""
 direct_label = ""
 list_title = ""
 title = ""
 total = ""
 total_label = ""
+view_profile = ""
 
 [ui.admin.tenants.members.table]
+actions = ""
 email = ""
 name = ""
 role = ""