diff --git a/Back-End/Auth/models.py b/Back-End/Auth/models.py
index 408d702..eaef8dc 100644
--- a/Back-End/Auth/models.py
+++ b/Back-End/Auth/models.py
@@ -25,7 +25,7 @@ class ProfileRole(models.Model):
     profile = models.ForeignKey('Profile', on_delete=models.CASCADE, related_name='roles')
     role_type = models.IntegerField(choices=RoleType.choices, default=RoleType.PROFIL_UNDEFINED)
     establishment = models.ForeignKey('Establishment.Establishment', on_delete=models.CASCADE, related_name='profile_roles')
-    is_active = models.BooleanField(default=False)
+    is_active = models.BooleanField(default=False, blank=True)
     updated_date = models.DateTimeField(auto_now=True)
 
     def __str__(self):
diff --git a/Back-End/N3wtSchool/mailManager.py b/Back-End/N3wtSchool/mailManager.py
index 7bf9cce..e3eacbe 100644
--- a/Back-End/N3wtSchool/mailManager.py
+++ b/Back-End/N3wtSchool/mailManager.py
@@ -1,4 +1,4 @@
-from django.core.mail import send_mail, get_connection, EmailMultiAlternatives, EmailMessage
+from django.core.mail import get_connection, EmailMultiAlternatives, EmailMessage
 from django.template.loader import render_to_string
 from django.utils.html import strip_tags
 from django.conf import settings
@@ -207,4 +207,22 @@ def isValid(message, fiche_inscription):
     responsable = eleve.getMainGuardian()
     mailReponsableAVerifier = responsable.mail
 
-    return responsableMail == mailReponsableAVerifier and str(idMail) == str(fiche_inscription.eleve.id)
\ No newline at end of file
+    return responsableMail == mailReponsableAVerifier and str(idMail) == str(fiche_inscription.eleve.id)
+
+def sendRegisterTeacher(recipients, establishment_id):
+    errorMessage = ''
+    try:
+        EMAIL_INSCRIPTION_SUBJECT = '[N3WT-SCHOOL] Bienvenue sur N3wt School (Enseignant)'
+        context = {
+            'BASE_URL': settings.BASE_URL,
+            'URL_DJANGO': settings.URL_DJANGO,
+            'email': recipients,
+            'establishment': establishment_id
+        }
+        connection = getConnection(establishment_id)
+        subject = EMAIL_INSCRIPTION_SUBJECT
+        html_message  = render_to_string('emails/inscription_teacher.html', context)
+        sendMail(subject=subject, message=html_message, recipients=recipients, connection=connection)
+    except Exception as e:
+        errorMessage = str(e)
+    return errorMessage
\ No newline at end of file
diff --git a/Back-End/School/views.py b/Back-End/School/views.py
index 97b0cc3..298d662 100644
--- a/Back-End/School/views.py
+++ b/Back-End/School/views.py
@@ -35,6 +35,7 @@ from collections import defaultdict
 from Subscriptions.models import Student, StudentCompetency
 from Subscriptions.util import getCurrentSchoolYear
 import logging
+from N3wtSchool.mailManager import sendRegisterForm, sendRegisterTeacher
 
 logger = logging.getLogger(__name__)
 
@@ -102,8 +103,17 @@ class TeacherListCreateView(APIView):
         teacher_serializer = TeacherSerializer(data=teacher_data)
 
         if teacher_serializer.is_valid():
-            teacher_serializer.save()
-
+            teacher_instance = teacher_serializer.save()
+            # Envoi du mail d'inscription enseignant uniquement à la création
+            email = None
+            establishment_id = None
+            if hasattr(teacher_instance, "profile_role") and teacher_instance.profile_role:
+                if hasattr(teacher_instance.profile_role, "profile") and teacher_instance.profile_role.profile:
+                    email = teacher_instance.profile_role.profile.email
+                if hasattr(teacher_instance.profile_role, "establishment") and teacher_instance.profile_role.establishment:
+                    establishment_id = teacher_instance.profile_role.establishment.id
+            if email and establishment_id:
+                sendRegisterTeacher(email, establishment_id)
             return JsonResponse(teacher_serializer.data, safe=False)
 
         return JsonResponse(teacher_serializer.errors, safe=False)
diff --git a/Back-End/Subscriptions/templates/emails/inscription_teacher.html b/Back-End/Subscriptions/templates/emails/inscription_teacher.html
new file mode 100644
index 0000000..fe534d5
--- /dev/null
+++ b/Back-End/Subscriptions/templates/emails/inscription_teacher.html
@@ -0,0 +1,63 @@
+<!-- Nouveau template pour l'inscription d'un enseignant -->
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>Bienvenue sur N3wt School</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            line-height: 1.6;
+            color: #333;
+        }
+        .container {
+            max-width: 600px;
+            margin: 0 auto;
+            padding: 20px;
+        }
+        .header {
+            background-color: #f4f4f4;
+            padding: 10px;
+            text-align: center;
+        }
+        .content {
+            padding: 20px;
+        }
+        .footer {
+            font-size: 12px;
+            text-align: center;
+            margin-top: 30px;
+            color: #777;
+        }
+        .logo {
+            width: 120px;
+            margin-bottom: 10px;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <!-- Utilisation d'un lien absolu pour le logo -->
+            <img src="{{URL_DJANGO}}/static/img/logo_min.svg" alt="Logo N3wt School" class="logo" style="display:block;margin:auto;" />
+            <h1>Bienvenue sur N3wt School</h1>
+        </div>
+        <div class="content">
+            <p>Bonjour,</p>
+            <p>Votre compte enseignant a été créé sur la plateforme N3wt School.</p>
+            <p>Pour accéder à votre espace personnel, veuillez vous connecter à l'adresse suivante :<br>
+                <a href="{{BASE_URL}}/users/login">{{BASE_URL}}/users/login</a>
+            </p>
+            <p>Votre identifiant est : <b>{{ email }}</b></p>
+            <p>Si c'est votre première connexion, veuillez activer votre compte ici :<br>
+                <a href="{{BASE_URL}}/users/subscribe?establishment_id={{establishment}}">{{BASE_URL}}/users/subscribe</a>
+            </p>
+            <p>Nous vous souhaitons une excellente prise en main de l'outil.<br>
+            L'équipe N3wt School reste à votre disposition pour toute question.</p>
+        </div>
+        <div class="footer">
+            <p>Ce message est généré automatiquement, merci de ne pas y répondre.</p>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/Front-End/src/components/Structure/Configuration/TeachersSection.js b/Front-End/src/components/Structure/Configuration/TeachersSection.js
index 9cffc51..86d75fe 100644
--- a/Front-End/src/components/Structure/Configuration/TeachersSection.js
+++ b/Front-End/src/components/Structure/Configuration/TeachersSection.js
@@ -140,38 +140,19 @@ const TeachersSection = ({
   const [removePopupMessage, setRemovePopupMessage] = useState('');
   const [removePopupOnConfirm, setRemovePopupOnConfirm] = useState(() => {});
 
-  const [confirmPopupVisible, setConfirmPopupVisible] = useState(false);
-  const [confirmPopupMessage, setConfirmPopupMessage] = useState('');
-  const [confirmPopupOnConfirm, setConfirmPopupOnConfirm] = useState(() => {});
-
   const { selectedEstablishmentId } = useEstablishment();
 
   // --- UTILS ---
 
-  // Retourne le profil existant pour un email, utilisé par un teacher actif ou le teacher en cours d'édition
-  const getUsedProfileForEmail = (email, teacherId = null) => {
-    const usedProfileIds = new Set(
-      teachers.map(t => t.profile_role && t.profile).filter(Boolean)
-    );
-    // Ajoute le profil du teacher en cours d'édition si besoin
-    if (teacherId) {
-      const currentTeacher = teachers.find(t => t.id === teacherId);
-      if (currentTeacher && currentTeacher.profile_role && currentTeacher.profile) {
-        const profileObj = profiles.find(p => p.id === currentTeacher.profile);
-        if (profileObj && profileObj.email === email) {
-          usedProfileIds.add(profileObj.id);
-        }
-      } else {
-        // Cas création immédiate : on cherche le profil par email dans profiles
-        const profileObj = profiles.find(p => p.email === email);
-        if (profileObj) {
-          usedProfileIds.add(profileObj.id);
-        }
-      }
-    }
-    return profiles.find(
-      (profile) => profile.email === email && usedProfileIds.has(profile.id)
-    );
+  // Retourne le profil existant pour un email
+  const getUsedProfileForEmail = (email) => {
+    // On cherche tous les profils dont l'email correspond
+    const matchingProfiles = profiles.filter(p => p.email === email);
+
+    // On retourne le premier profil correspondant (ou undefined)
+    const result = matchingProfiles.length > 0 ? matchingProfiles[0] : undefined;
+
+    return result;
   };
 
   // Met à jour le formData et newTeacher si besoin
@@ -189,7 +170,7 @@ const TeachersSection = ({
 
   const handleEmailChange = (e) => {
     const email = e.target.value;
-    const existingProfile = getUsedProfileForEmail(email, editingTeacher);
+    const existingProfile = getUsedProfileForEmail(email);
 
     if (existingProfile) {
       logger.info(`Adresse email déjà utilisée pour le profil ${existingProfile.id}`);
@@ -290,9 +271,6 @@ const TeachersSection = ({
   };
 
   const handleUpdateTeacher = (id, updatedData) => {
-    // Simplification : le profil est forcément existant, on utilise directement existingProfileId du formData
-    const currentTeacher = teachers.find((teacher) => teacher.id === id);
-
     if (
       updatedData.last_name &&
       updatedData.first_name &&
@@ -302,7 +280,6 @@ const TeachersSection = ({
         id: updatedData.profile_role,
         establishment: selectedEstablishmentId,
         role_type: updatedData.role_type || 0,
-        is_active: true,
         profile: updatedData.existingProfileId,
       };