diff --git a/adminfront/src/lib/adminApi.ts b/adminfront/src/lib/adminApi.ts
index e8d9ef4e..96986673 100644
--- a/adminfront/src/lib/adminApi.ts
+++ b/adminfront/src/lib/adminApi.ts
@@ -446,11 +446,13 @@ export async function fetchUser(userId: string) {
 
 export async function createUser(payload: UserCreateRequest) {
   // Map tenantSlug to companyCode for backend compatibility
-  const requestPayload: any = { ...payload };
+  const requestPayload: UserCreateRequest & { companyCode?: string } = {
+    ...payload,
+  };
   if (payload.tenantSlug !== undefined) {
     requestPayload.companyCode = payload.tenantSlug;
   }
-  
+
   const { data } = await apiClient.post<UserCreateResponse>(
     "/v1/admin/users",
     requestPayload,
@@ -473,7 +475,7 @@ export function exportUsersCSVUrl(search?: string, tenantSlug?: string) {
 
 export async function bulkCreateUsers(users: BulkUserItem[]) {
   const mappedUsers = users.map((u) => {
-    const mapped: any = { ...u };
+    const mapped: BulkUserItem & { companyCode?: string } = { ...u };
     if (u.tenantSlug !== undefined) {
       mapped.companyCode = u.tenantSlug;
     }
@@ -493,7 +495,9 @@ export async function bulkUpdateUsers(payload: {
   tenantSlug?: string;
   department?: string;
 }) {
-  const requestPayload: any = { ...payload };
+  const requestPayload: typeof payload & { companyCode?: string } = {
+    ...payload,
+  };
   if (payload.tenantSlug !== undefined) {
     requestPayload.companyCode = payload.tenantSlug;
   }
@@ -509,7 +513,9 @@ export async function bulkDeleteUsers(userIds: string[]) {
 }
 
 export async function updateUser(userId: string, payload: UserUpdateRequest) {
-  const requestPayload: any = { ...payload };
+  const requestPayload: UserUpdateRequest & { companyCode?: string } = {
+    ...payload,
+  };
   if (payload.tenantSlug !== undefined) {
     requestPayload.companyCode = payload.tenantSlug;
   }