diff --git a/src/pages/authentication/auth-forms/BusCustomFormWizard.js b/src/pages/authentication/auth-forms/BusCustomFormWizard.js
index 06f3220..e4326b5 100644
--- a/src/pages/authentication/auth-forms/BusCustomFormWizard.js
+++ b/src/pages/authentication/auth-forms/BusCustomFormWizard.js
@@ -146,6 +146,7 @@ const BusCustomFormWizard = (props) => {
             termsAndConAccept == true&&
             fileList.length!==0&&
             data.captchaField&&
+            data.brNo!==""&&
             handlePassword(data.password)&&
             handleEmail(data.email)&&
             handlePhone(data.phone)&&
@@ -443,7 +444,7 @@ const BusCustomFormWizard = (props) => {
             phone: yup.string().min(8,'請輸入最少8位數字').required('請輸入聯絡電話'),
             fax: yup.string().min(8,'請輸入最少8位數字'),
             brExpiryDate: yup.string().min(8,'請輸入商業登記證有效日期'),
-            brNo: yup.string().min(8,'請輸入商業登記證號碼'),
+            brNo: yup.string().min(8,'請輸入商業登記證號碼').required('請輸入商業登記證號碼'),
             captchaField: yup.string().required('請輸入驗證').oneOf([captcha], '請輸入有效驗證'),
         })
     
@@ -713,6 +714,7 @@ const BusCustomFormWizard = (props) => {
                                             value={formik.values.brNo.trim()}
                                             name="brNo"
                                             onChange={formik.handleChange}
+                                            onBlur={formik.handleBlur}
                                             placeholder="與與商業登記證相同如有"
                                             inputProps={{
                                                 onKeyDown: (e) => {
diff --git a/src/pages/pnspsUserDetailPage_Individual/UserInformationCard_Individual.js b/src/pages/pnspsUserDetailPage_Individual/UserInformationCard_Individual.js
index 68f67fb..28f118d 100644
--- a/src/pages/pnspsUserDetailPage_Individual/UserInformationCard_Individual.js
+++ b/src/pages/pnspsUserDetailPage_Individual/UserInformationCard_Individual.js
@@ -38,7 +38,7 @@ const UserInformationCard_Individual = ({formData, loadDataFun}) => {
             tel_countryCode: yup.string().min(3,'請輸入3位數字').required('請輸入國際區號'),
             fax_countryCode: yup.string().min(3,'請輸入3位數字'),
             phoneNumber: yup.string().min(8,'請輸入8位數字').required('請輸入聯絡電話'),
-            faxNumber: yup.string().min(8,'請輸入8位數字').required('請輸入8位數字'),
+            faxNumber: yup.string().min(8,'請輸入8位數字').nullable(),
         }),
         onSubmit:values=>{
             console.log(values);