diff --git a/src/pages/01_branch-management/MainPage.vue b/src/pages/01_branch-management/MainPage.vue
index dd8d8197..0eb893f9 100644
--- a/src/pages/01_branch-management/MainPage.vue
+++ b/src/pages/01_branch-management/MainPage.vue
@@ -162,13 +162,13 @@ const formType = ref<'create' | 'edit' | 'delete' | 'view'>('create');
 const formTypeBranch = ref<'headOffice' | 'subBranch'>('headOffice');
 const currentHq = ref<{ id: string; code: string }>({ id: '', code: '' });
 const currentEdit = ref<{ id: string; code: string }>({ id: '', code: '' });
-const formData = ref<Omit<BranchCreate, 'qrCodeImage' | 'imageUrl'>>(
-  structuredClone(defaultFormData),
-);
+const formData = ref<
+  Omit<BranchCreate & { codeHeadOffice?: string }, 'qrCodeImage' | 'imageUrl'>
+>(structuredClone(defaultFormData));
 
-const prevFormData = ref<Omit<BranchCreate, 'qrCodeImage' | 'imageUrl'>>(
-  structuredClone(defaultFormData),
-);
+const prevFormData = ref<
+  Omit<BranchCreate & { codeHeadOffice?: string }, 'qrCodeImage' | 'imageUrl'>
+>(structuredClone(defaultFormData));
 
 const modalDrawer = ref<boolean>(false);
 
@@ -242,6 +242,11 @@ function triggerCreate(
     };
   }
 
+  if (type === 'subBranch' && id && code) {
+    formData.value.headOfficeId = id;
+    formData.value.codeHeadOffice = code;
+  }
+
   formType.value = 'create';
   openDialog();
 }
@@ -333,6 +338,7 @@ async function onSubmit() {
   if (formType.value === 'create') {
     if (formTypeBranch.value === 'subBranch') {
       formData.value.headOfficeId = currentHq.value.id;
+      delete formData.value['codeHeadOffice'];
     }
 
     await branchStore.create({
@@ -493,7 +499,11 @@ watch(locale, () => {
                       if (!currentHq.id) {
                         triggerCreate('headOffice');
                       } else {
-                        triggerCreate('subBranch');
+                        triggerCreate(
+                          'subBranch',
+                          currentHq.id,
+                          currentHq.code,
+                        );
                       }
                     }
                   "
@@ -879,7 +889,7 @@ watch(locale, () => {
   >
     <template #information>
       <FormBranchInformation
-        v-model:code="currentHq.code"
+        v-model:code="formData.codeHeadOffice"
         v-model:code-sub-branch="currentEdit.code"
         v-model:taxNo="formData.taxNo"
         v-model:name="formData.name"