diff --git a/Front-End/src/app/[locale]/admin/subscriptions/editSubscription/page.js b/Front-End/src/app/[locale]/admin/subscriptions/editSubscription/page.js
index 0f47c0c..92aab2c 100644
--- a/Front-End/src/app/[locale]/admin/subscriptions/editSubscription/page.js
+++ b/Front-End/src/app/[locale]/admin/subscriptions/editSubscription/page.js
@@ -8,9 +8,11 @@ import { useEstablishment } from '@/context/EstablishmentContext';
 import { editRegisterForm } from '@/app/actions/subscriptionAction';
 import logger from '@/utils/logger';
 import Loader from '@/components/Loader';
+import { useNotification } from '@/context/NotificationContext';
 
 export default function Page() {
   const router = useRouter();
+  const { showNotification } = useNotification();
   const searchParams = useSearchParams();
   const studentId = searchParams.get('studentId');
   const enable = searchParams.get('enabled') === 'true';
@@ -26,11 +28,21 @@ export default function Page() {
       .then((result) => {
         setIsLoading(false);
         logger.debug('Success:', result);
+        showNotification(
+          "Dossier d'inscription soumis avec succès",
+          'success',
+          'Succès'
+        );
         router.push(FE_ADMIN_SUBSCRIPTIONS_URL);
       })
       .catch((error) => {
         setIsLoading(false);
         logger.error('Error:', error.message);
+        showNotification(
+          "Erreur lors de la soumission du dossier d'inscription",
+          'error',
+          'Erreur'
+        );
         if (error.details) {
           logger.error('Form errors:', error.details);
           setFormErrors(error.details);
diff --git a/Front-End/src/app/[locale]/parents/editSubscription/page.js b/Front-End/src/app/[locale]/parents/editSubscription/page.js
index 736bd24..8b8ffcd 100644
--- a/Front-End/src/app/[locale]/parents/editSubscription/page.js
+++ b/Front-End/src/app/[locale]/parents/editSubscription/page.js
@@ -7,25 +7,47 @@ import { useEstablishment } from '@/context/EstablishmentContext';
 import { FE_PARENTS_HOME_URL } from '@/utils/Url';
 import { editRegisterForm } from '@/app/actions/subscriptionAction';
 import logger from '@/utils/logger';
+import Loader from '@/components/Loader';
+import { useNotification } from '@/context/NotificationContext';
 
 export default function Page() {
   const searchParams = useSearchParams();
+  const { showNotification } = useNotification();
   const studentId = searchParams.get('studentId');
   const enable = searchParams.get('enabled') === 'true';
   const router = useRouter();
   const csrfToken = useCsrfToken();
   const { selectedEstablishmentId, apiDocuseal } = useEstablishment();
+  const [isLoading, setIsLoading] = useState(false);
 
-  const handleSubmit = async (data) => {
-    try {
-      const result = await editRegisterForm(studentId, data, csrfToken);
-      logger.debug('Success:', result);
-      router.push(FE_PARENTS_HOME_URL);
-    } catch (error) {
-      logger.error('Error:', error);
-    }
+  const handleSubmit = (data) => {
+    setIsLoading(true);
+    editRegisterForm(studentId, data, csrfToken)
+      .then((result) => {
+        setIsLoading(false);
+        logger.debug('Success:', result);
+        showNotification(
+          "Dossier d'inscription soumis avec succès",
+          'success',
+          'Succès'
+        );
+        router.push(FE_PARENTS_HOME_URL);
+      })
+      .catch((error) => {
+        setIsLoading(false);
+        showNotification(
+          "Erreur lors de la soumission du dossier d'inscription",
+          'error',
+          'Erreur'
+        );
+        logger.error('Error:', error);
+      });
   };
 
+  if (isLoading === true) {
+    return <Loader />; // Affichez le composant Loader
+  }
+
   return (
     <InscriptionFormShared
       studentId={studentId}
diff --git a/Front-End/src/components/Inscription/FilesToUpload.js b/Front-End/src/components/Inscription/FilesToUpload.js
index 3c60c34..5342924 100644
--- a/Front-End/src/components/Inscription/FilesToUpload.js
+++ b/Front-End/src/components/Inscription/FilesToUpload.js
@@ -230,7 +230,7 @@ export default function FilesToUpload({
         <div className="mt-4">
           {actionType === 'view' && selectedFile.fileName ? (
             <iframe
-              src={`${BASE_URL}/${selectedFile.fileName}`}
+              src={`${BASE_URL}${selectedFile.fileName}`}
               title="Document Viewer"
               className="w-full"
               style={{
diff --git a/Front-End/src/components/Inscription/InscriptionFormShared.js b/Front-End/src/components/Inscription/InscriptionFormShared.js
index c2a90f5..b1fb881 100644
--- a/Front-End/src/components/Inscription/InscriptionFormShared.js
+++ b/Front-End/src/components/Inscription/InscriptionFormShared.js
@@ -385,7 +385,7 @@ export default function InscriptionFormShared({
   // Soumission du formulaire
   const handleSubmit = (e) => {
     e.preventDefault();
-
+    
     // Vérifier si le mode de paiement sélectionné est un prélèvement SEPA
     const isSepaPayment = formData.isSepa === 1;
 
diff --git a/Front-End/src/components/Inscription/StudentInfoForm.js b/Front-End/src/components/Inscription/StudentInfoForm.js
index 5e2a430..ef6cb74 100644
--- a/Front-End/src/components/Inscription/StudentInfoForm.js
+++ b/Front-End/src/components/Inscription/StudentInfoForm.js
@@ -112,8 +112,13 @@ export default function StudentInfoForm({
       (field === 'birth_place' &&
         (!formData.birth_place || formData.birth_place.trim() === '')) ||
       (field === 'birth_postal_code' &&
-        (!formData.birth_postal_code ||
-          String(formData.birth_postal_code).trim() === '')) ||
+        (
+          !formData.birth_postal_code ||
+          String(formData.birth_postal_code).trim() === '' ||
+          isNaN(Number(formData.birth_postal_code)) ||
+          !Number.isInteger(Number(formData.birth_postal_code))
+        )
+      ) ||
       (field === 'address' &&
         (!formData.address || formData.address.trim() === '')) ||
       (field === 'attending_physician' &&