diff --git a/src/core/auth/auth.test.ts b/src/core/auth/auth.test.ts
index eed3a8cc..ee88a86c 100644
--- a/src/core/auth/auth.test.ts
+++ b/src/core/auth/auth.test.ts
@@ -98,6 +98,10 @@ describe('admin auth session', () => {
 
     await auth.login('platform_admin', 'password')
 
+    expect(mocks.post).toHaveBeenCalledWith('/auth/login', {
+      loginId: 'platform_admin',
+      password: 'password',
+    })
     expect(auth.isAuthenticated).toBe(true)
     expect(auth.refreshToken).toBe('refresh-domestic')
   })
diff --git a/src/core/auth/auth.ts b/src/core/auth/auth.ts
index 03aa5f7b..6d995ae4 100644
--- a/src/core/auth/auth.ts
+++ b/src/core/auth/auth.ts
@@ -176,7 +176,7 @@ export const useAuthStore = defineStore('admin-auth', () => {
     try {
       const response = await http.post<ApiEnvelope<LoginResponse>, ApiEnvelope<LoginResponse>>(
         '/auth/login',
-        { username: account, password },
+        { loginId: account, password },
       )
       const result = unwrapApiResponse<LoginResponse>(response)
       await applySession(result, expectedGeneration)
diff --git a/src/modules/customers/pages/CustomersView.vue b/src/modules/customers/pages/CustomersView.vue
index 8e82b61d..38133af8 100644
--- a/src/modules/customers/pages/CustomersView.vue
+++ b/src/modules/customers/pages/CustomersView.vue
@@ -9,7 +9,6 @@ import {
   approveEnterpriseReview,
   archivePlatformTenant,
   changePlatformTenantStatus,
-  checkPlatformTenantContactPhone,
   createPlatformTenant,
   createPlatformTenantImpersonation,
   downloadTenantQualification,
@@ -148,11 +147,14 @@ const rules: FormRules = {
   tenantName: [{ required: true, message: '请输入公司名称', trigger: 'blur' }],
   legalName: [{ required: true, message: '请输入营业执照上的企业名称', trigger: 'blur' }],
   legalRepresentative: [{ required: true, message: '请输入法定代表人姓名', trigger: 'blur' }],
-  unifiedSocialCreditCode: [{ pattern: /^[0-9A-Z]{18}$/, message: '请输入 18 位大写字母或数字', trigger: 'blur' }],
+  unifiedSocialCreditCode: [
+    { required: true, message: '请输入统一社会信用代码', trigger: 'blur' },
+    { pattern: /^[0-9A-Z]{18}$/, message: '请输入 18 位大写字母或数字', trigger: 'blur' },
+  ],
   contactName: [{ required: true, message: '请输入联系人姓名', trigger: 'blur' }],
   contactPhone: [
-    { required: true, message: '请输入联系电话', trigger: 'blur' },
-    { pattern: /^[0-9-]{4,32}$/, message: '请输入 4-32 位数字或连字符，联系电话将作为登录用户名', trigger: 'blur' },
+    { required: true, message: '请输入公司联系电话', trigger: 'blur' },
+    { pattern: /^[0-9-]{4,32}$/, message: '请输入 4-32 位数字或连字符', trigger: 'blur' },
   ],
   contactEmail: [{ type: 'email', message: '请输入有效邮箱地址', trigger: 'blur' }],
   servicePackage: [{ required: true, message: '请选择客户套餐', trigger: 'change' }],
@@ -171,7 +173,7 @@ const decisionRules: FormRules = {
 function newQualificationDrafts(): QualificationDraft[] {
   const definitions: Array<Pick<QualificationDraft, 'type' | 'label' | 'required'>> = [
     { type: 'BUSINESS_LICENSE', label: '营业执照', required: true },
-    { type: 'LEGAL_PERSON_ID', label: '法人身份证', required: true },
+    { type: 'LEGAL_PERSON_ID', label: '法人身份证', required: false },
     { type: 'FREIGHT_FORWARDER_CERTIFICATE', label: '货代资质证书', required: false },
     { type: 'BANK_ACCOUNT_LICENSE', label: '银行开户许可证', required: false },
   ]
@@ -221,23 +223,16 @@ const uploadingQualifications = computed(() => qualifications.value.some((item)
 const hasSelectedQualifications = computed(() => qualifications.value.some((item) => item.file))
 const selectedBusinessLicense = computed(() => qualifications.value.find((item) => item.type === 'BUSINESS_LICENSE')?.file)
 const selectedLegalPersonId = computed(() => qualifications.value.find((item) => item.type === 'LEGAL_PERSON_ID')?.file)
-const requiredPackageChangeSelected = computed(() => Boolean(selectedBusinessLicense.value || selectedLegalPersonId.value))
-const requiredPackageFilesSelected = computed(() => Boolean(selectedBusinessLicense.value && selectedLegalPersonId.value))
-const creditCodeReadyForSave = computed(() => requiredPackageChangeSelected.value
-  ? requiredPackageFilesSelected.value && (creditCodeEstablished.value
-    || unifiedSocialCreditCodePattern.test(form.value.unifiedSocialCreditCode || ''))
-  : creditCodeEstablished.value)
-const requiredQualificationPackageComplete = computed(() => creditCodeReadyForSave.value
-  && (requiredPackageChangeSelected.value
-    ? requiredPackageFilesSelected.value
-    : qualifications.value.filter((item) => item.required).every((item) => item.uploaded)))
+const businessLicenseReadyForSave = computed(() => Boolean(selectedBusinessLicense.value
+  || qualifications.value.find((item) => item.type === 'BUSINESS_LICENSE')?.uploaded))
+const creditCodeReadyForSave = computed(() => creditCodeEstablished.value
+  || unifiedSocialCreditCodePattern.test(form.value.unifiedSocialCreditCode || ''))
+const requiredQualificationPackageComplete = computed(() => businessLicenseReadyForSave.value && creditCodeReadyForSave.value)
 const missingQualificationPackageItems = computed(() => {
   const businessLicense = qualifications.value.find((item) => item.type === 'BUSINESS_LICENSE')
-  const legalPersonId = qualifications.value.find((item) => item.type === 'LEGAL_PERSON_ID')
   const missing: string[] = []
-  if (requiredPackageChangeSelected.value ? !businessLicense?.file : !businessLicense?.uploaded) missing.push('营业执照')
-  if (!creditCodeReadyForSave.value) missing.push('18位统一社会信用代码（需随必填资质包保存）')
-  if (requiredPackageChangeSelected.value ? !legalPersonId?.file : !legalPersonId?.uploaded) missing.push('法人身份证')
+  if (!businessLicense?.file && !businessLicense?.uploaded) missing.push('营业执照')
+  if (!creditCodeReadyForSave.value) missing.push('18位统一社会信用代码（需随营业执照保存）')
   return missing
 })
 const hasUnsavedChanges = computed(() => Boolean(editingId.value) && JSON.stringify(form.value) !== savedFormSnapshot.value)
@@ -512,27 +507,38 @@ async function uploadSelectedQualifications(tenantId: string) {
   const failures: string[] = []
   const businessLicense = qualifications.value.find((item) => item.type === 'BUSINESS_LICENSE')
   const legalPersonId = qualifications.value.find((item) => item.type === 'LEGAL_PERSON_ID')
-  if (requiredPackageChangeSelected.value && businessLicense?.file && legalPersonId?.file) {
-    businessLicense.uploading = true; legalPersonId.uploading = true
-    businessLicense.error = ''; legalPersonId.error = ''
+  const businessLicenseFile = businessLicense?.file || null
+  const legalPersonIdFile = legalPersonId?.file || null
+  if (businessLicense && businessLicenseFile) {
+    businessLicense.uploading = true
+    if (legalPersonIdFile && legalPersonId) legalPersonId.uploading = true
+    businessLicense.error = ''
+    if (legalPersonId) legalPersonId.error = ''
     try {
       const uploaded = await uploadPlatformTenantRequiredQualificationPackage(
-        tenantId, businessLicense.file, legalPersonId.file, form.value.unifiedSocialCreditCode,
-        businessLicense.uploaded, legalPersonId.uploaded,
+        tenantId, businessLicenseFile, legalPersonIdFile, form.value.unifiedSocialCreditCode,
+        businessLicense.uploaded, Boolean(legalPersonIdFile && legalPersonId?.uploaded),
       )
-      businessLicense.uploaded = true; legalPersonId.uploaded = true
+      if (legalPersonIdFile && !uploaded.legalPersonIdDocumentUrl) throw new Error('法人身份证上传结果缺少文件地址')
+      businessLicense.uploaded = true
       creditCodeEstablished.value = true
-      businessLicense.uploadedName = businessLicense.file.name
-      legalPersonId.uploadedName = legalPersonId.file.name
+      businessLicense.uploadedName = businessLicenseFile.name
       businessLicense.documentUrl = uploaded.businessLicenseDocumentUrl
-      legalPersonId.documentUrl = uploaded.legalPersonIdDocumentUrl
-      businessLicense.file = null; legalPersonId.file = null
+      businessLicense.file = null
+      if (legalPersonIdFile && legalPersonId) {
+        legalPersonId.uploaded = true
+        legalPersonId.uploadedName = legalPersonIdFile.name
+        legalPersonId.documentUrl = uploaded.legalPersonIdDocumentUrl || ''
+        legalPersonId.file = null
+      }
     } catch (error) {
-      const message = getApiErrorMessage(error, '必填资质包上传失败，请重试')
-      businessLicense.error = message; legalPersonId.error = message
-      failures.push('必填资质包')
+      const message = getApiErrorMessage(error, '营业执照及统一社会信用代码保存失败，请重试')
+      businessLicense.error = message
+      if (legalPersonIdFile && legalPersonId) legalPersonId.error = message
+      failures.push('营业执照资质')
     } finally {
-      businessLicense.uploading = false; legalPersonId.uploading = false
+      businessLicense.uploading = false
+      if (legalPersonId) legalPersonId.uploading = false
     }
   }
   for (const draft of failures.length ? [] : qualifications.value.filter((item) => !item.required && item.file)) {
diff --git a/src/modules/iam/api/platformIam.ts b/src/modules/iam/api/platformIam.ts
index 9689de43..2ff8f2c8 100644
--- a/src/modules/iam/api/platformIam.ts
+++ b/src/modules/iam/api/platformIam.ts
@@ -128,10 +128,10 @@ export interface PlatformQualificationUploadResponse {
 
 export interface PlatformRequiredQualificationPackageUploadResponse {
   businessLicenseQualificationId: number | string
-  legalPersonIdQualificationId: number | string
+  legalPersonIdQualificationId: number | string | null
   tenantStatus: PlatformTenantStatus
   businessLicenseDocumentUrl: string
-  legalPersonIdDocumentUrl: string
+  legalPersonIdDocumentUrl: string | null
 }
 
 export interface EnterpriseApprovalResponse {
@@ -429,14 +429,14 @@ export async function uploadPlatformTenantQualification(
 export async function uploadPlatformTenantRequiredQualificationPackage(
   tenantId: number | string,
   businessLicense: File,
-  legalPersonId: File,
+  legalPersonId: File | null,
   unifiedSocialCreditCode: string,
   replaceBusinessLicense = false,
   replaceLegalPersonId = false,
 ) {
   const form = new FormData()
   form.append('businessLicense', businessLicense)
-  form.append('legalPersonId', legalPersonId)
+  if (legalPersonId) form.append('legalPersonId', legalPersonId)
   form.append('unifiedSocialCreditCode', unifiedSocialCreditCode)
   if (replaceBusinessLicense) form.append('replaceBusinessLicense', 'true')
   if (replaceLegalPersonId) form.append('replaceLegalPersonId', 'true')
diff --git a/src/shared/api/http.test.ts b/src/shared/api/http.test.ts
index 871ac892..15b361fb 100644
--- a/src/shared/api/http.test.ts
+++ b/src/shared/api/http.test.ts
@@ -32,7 +32,7 @@ describe('API error diagnostics', () => {
       }
     }
 
-    await http.post('/auth/login', { username: 'operator', password: 'secret' })
+    await http.post('/auth/login', { loginId: 'operator', password: 'secret' })
 
     expect(authorization).toBeUndefined()
     localStorage.removeItem('cc-admin-token')