diff --git a/la_chariotte/order/forms.py b/la_chariotte/order/forms.py
index 2cf2817..0d53139 100644
--- a/la_chariotte/order/forms.py
+++ b/la_chariotte/order/forms.py
@@ -18,9 +18,26 @@ class GroupedOrderForm(forms.ModelForm):
         widget=forms.TimeInput(attrs={"type": "time"}),
         initial=datetime.time(hour=23, minute=59, second=59),
     )
-    is_phone_mandatory = forms.BooleanField(
-        label="Numéro de téléphone obligatoire pour les participants",
+
+    required_phone = forms.TypedChoiceField(
+        label="Numéro de téléphone",
         required=False,
+        choices=[
+            (0, "Désactivé"),
+            (1, "Facultatif"),
+            (2, "Obligatoire"),
+        ],
+        coerce=int,
+    )
+    required_email = forms.TypedChoiceField(
+        label="Adresse email",
+        required=False,
+        choices=[
+            (0, "Désactivé"),
+            (1, "Facultatif"),
+            (2, "Obligatoire"),
+        ],
+        coerce=int,
     )
 
     class Meta:
@@ -33,7 +50,8 @@ class GroupedOrderForm(forms.ModelForm):
             "delivery_slot",
             "place",
             "description",
-            "is_phone_mandatory",
+            "required_phone",
+            "required_email",
         ]
         widgets = {
             "name": forms.TextInput(
diff --git a/la_chariotte/order/migrations/0030_remove_groupedorder_is_phone_mandatory_and_more.py b/la_chariotte/order/migrations/0030_remove_groupedorder_is_phone_mandatory_and_more.py
new file mode 100644
index 0000000..d082ac6
--- /dev/null
+++ b/la_chariotte/order/migrations/0030_remove_groupedorder_is_phone_mandatory_and_more.py
@@ -0,0 +1,55 @@
+# Generated by Django 4.2.19 on 2025-03-06 16:37
+
+import django.core.validators
+from django.db import migrations, models
+
+
+def migrate_from_is_phone_mandatory(apps, schema_editor):
+    """For continuity, move is_phone_mandatory to the new required_phone field, and set
+       required_email=2 for the orders that were created so far."""
+
+    GroupedOrder = apps.get_model("order", "GroupedOrder")
+    for grouped_order in GroupedOrder.objects.all():
+        grouped_order.required_email = 2
+        grouped_order.required_phone = 2 if grouped_order.is_phone_mandatory else 1
+        grouped_order.save()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("order", "0029_set_phone_mandatory_for_existing_orders"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="groupedorder",
+            name="required_email",
+            field=models.IntegerField(
+                verbose_name="Adresse email",
+                blank=True,
+                default=2,
+                validators=[
+                    django.core.validators.MaxValueValidator(2),
+                    django.core.validators.MinValueValidator(0),
+                ],
+            ),
+        ),
+        migrations.AddField(
+            model_name="groupedorder",
+            name="required_phone",
+            field=models.IntegerField(
+                verbose_name="Numéro de téléphone",
+                blank=True,
+                default=2,
+                validators=[
+                    django.core.validators.MaxValueValidator(2),
+                    django.core.validators.MinValueValidator(0),
+                ],
+            ),
+        ),
+        migrations.RunPython(migrate_from_is_phone_mandatory),
+        migrations.RemoveField(
+            model_name="groupedorder",
+            name="is_phone_mandatory",
+        ),
+    ]
diff --git a/la_chariotte/order/models.py b/la_chariotte/order/models.py
index 5450f72..e21c24e 100644
--- a/la_chariotte/order/models.py
+++ b/la_chariotte/order/models.py
@@ -2,6 +2,7 @@ import random
 
 import base36
 from django.core.exceptions import ValidationError
+from django.core.validators import MaxValueValidator, MinValueValidator
 from django.db import models
 from django.urls import reverse
 from django.utils import timezone
@@ -26,8 +27,28 @@ class GroupedOrder(models.Model):
     )
     description = models.TextField("Description", null=True, blank=True)
     code = models.CharField(auto_created=True)
-    is_phone_mandatory = models.BooleanField(
-        default=False, verbose_name="Numéro de téléphone obligatoire"
+
+    # Whether phone/email registration is possible/necessary for this grouped order
+    # 0 = disabled
+    # 1 = optional
+    # 2 = required
+    required_phone = models.IntegerField(
+        verbose_name="Numéro de téléphone",
+        default=2,
+        blank=True,
+        validators=[
+            MaxValueValidator(2),
+            MinValueValidator(0),
+        ],
+    )
+    required_email = models.IntegerField(
+        verbose_name="Adresse email",
+        default=2,
+        blank=True,
+        validators=[
+            MaxValueValidator(2),
+            MinValueValidator(0),
+        ],
     )
 
     def create_code_from_pk(self):
diff --git a/la_chariotte/order/templates/order/grouped_order_detail.html b/la_chariotte/order/templates/order/grouped_order_detail.html
index b73d467..ef3ba38 100644
--- a/la_chariotte/order/templates/order/grouped_order_detail.html
+++ b/la_chariotte/order/templates/order/grouped_order_detail.html
@@ -157,16 +157,22 @@
                                 <input id="last_name" type="text" name="last_name" placeholder="Votre nom"
                                        value="{{ order_author.last_name }}" required></p>
                         </div>
+                        {% if required_phone or required_email %}
                         <div class="column">
-                            <p><label for="phone">Numéro de téléphone {% if not is_phone_mandatory %}<em>(facultatif)</em> {% endif %}:</label>
+                            {% if required_phone != 0 %}
+                            <p><label for="phone">Numéro de téléphone {% if required_phone == 1 %}<em>(facultatif)</em> {% endif %}:</label>
                                 <input id="phone" type="tel" pattern="[0-9]{10}" 
                                 placeholder="0601020304" name="phone"
                                        value="{{ order_author.phone }}"
-                                       {% if is_phone_mandatory %}required{% endif %}></p>
-                            <p><label for="email">Adresse mail : </label>
+                                       {% if required_phone == 2 %}required{% endif %}></p>
+                            {% endif %}
+                            {% if required_email != 0 %}
+                            <p><label for="email">Adresse mail {% if required_email == 1 %}<em>(facultatif)</em> {%endif %}: </label>
                                 <input id="email" type="email" placeholder="exemple@mail.fr" name="email"
-                                       value="{{ order_author.email }}" required></p>
+                                       value="{{ order_author.email }}" {% if required_email == 2 %}required{% endif %}></p>
+                            {% endif %}
                         </div>
+                        {% endif %}
                     </div>
                     <p><label for="note">Note à l'organisateur·ice<em> (facultatif)</em> :</label>
                         <textarea id="note" rows=3 name="note">{{ note }}</textarea></p>
diff --git a/la_chariotte/order/views/grouped_order.py b/la_chariotte/order/views/grouped_order.py
index 55d9cca..ea31135 100644
--- a/la_chariotte/order/views/grouped_order.py
+++ b/la_chariotte/order/views/grouped_order.py
@@ -134,8 +134,9 @@ class GroupedOrderDetailView(generic.DetailView):
                 "prices_dict": json.dumps(prices_dict, cls=DjangoJSONEncoder),
                 "remaining_qty": remaining_qty,
                 "order_author": order_author,
-                # Used to set if the phone is required in the form
-                "is_phone_mandatory": grouped_order.is_phone_mandatory,
+                # Used to set if the phone/email is required/optional/disabled in the form
+                "required_phone": grouped_order.required_phone,
+                "required_email": grouped_order.required_email,
             }
         )
         return context
diff --git a/la_chariotte/order/views/order.py b/la_chariotte/order/views/order.py
index 032b219..3a5f019 100644
--- a/la_chariotte/order/views/order.py
+++ b/la_chariotte/order/views/order.py
@@ -40,15 +40,67 @@ def place_order(request, code):
         )
         orders_dict[i] = value
 
-    # create an order
+    error_message = None
+
     first_name = request.POST["first_name"]
     last_name = request.POST["last_name"]
-    phone = request.POST["phone"]
-    email = request.POST["email"]
     note = request.POST["note"]
+
+    # check if required/optional phone is supplied
+    # When not supplied, use "" because the order_author table phone has a NOT NULL statement
+    error_message = None
+    if grouped_order.required_phone == 0:
+        phone = ""
+    else:
+        if "phone" in request.POST and request.POST["phone"] != "":
+            # Phone is supplied, whether required or not
+            phone = request.POST["phone"]
+        elif grouped_order.required_phone == 2:
+            # Phone is not supplied, but was required
+            error_message = (
+                "Le numéro de téléphone est obligatoire pour cette commande groupée"
+            )
+            phone = ""
+        else:
+            # Phone is not supplied, but was not mandatory
+            phone = ""
+
+    # check if required/optional email is supplied
+    # When not supplied, use "" because the order_author table email has a NOT NULL statement
+    if grouped_order.required_email == 0:
+        email = ""
+    else:
+        if "email" in request.POST and request.POST["email"] != "":
+            # email is supplied, whether required or not
+            email = request.POST["email"]
+        elif grouped_order.required_email == 2:
+            # email is not supplied, but was required
+            error_message = (
+                "L'adresse email est obligatoire pour cette commande groupée"
+            )
+            email = ""
+        else:
+            # email is not supplied, but was not mandatory
+            email = ""
+
+    # create an author
     author = OrderAuthor.objects.create(
         first_name=first_name, last_name=last_name, email=email, phone=phone
     )
+    if error_message:
+        author.delete()
+        return render(
+            request,
+            "order/grouped_order_detail.html",
+            {
+                "grouped_order": grouped_order,
+                "error_message": error_message,
+                "note": note,
+                "author": author,
+            },
+        )
+
+    # create an order
     order = Order.objects.create(
         author=author,
         grouped_order=grouped_order,
@@ -57,7 +109,6 @@ def place_order(request, code):
     )
 
     # add items to the order
-    error_message = None
     for key, quantity in orders_dict.items():
         quantity = int(quantity)
         item = grouped_order.item_set.get(pk=key.split("_")[1])
diff --git a/la_chariotte/tests/test_order_views_grouped_order.py b/la_chariotte/tests/test_order_views_grouped_order.py
index ce6fa36..418f944 100644
--- a/la_chariotte/tests/test_order_views_grouped_order.py
+++ b/la_chariotte/tests/test_order_views_grouped_order.py
@@ -362,7 +362,7 @@ class TestGroupedOrderDetailView:
                 "first_name": {authenticated_user_with_name.first_name},
                 "last_name": {authenticated_user_with_name.last_name},
                 "phone": "0645632569",
-                "email": {authenticated_user_with_name.email},
+                "email": {authenticated_user_with_name.username},
                 "note": "test note",
             },
         )
@@ -670,7 +670,7 @@ class TestGroupedOrderDetailView:
             name="gr order test",
             orga_user=other_user,
         )
-        assert grouped_order.is_phone_mandatory == True
+        assert grouped_order.required_phone == 2
         item = models.Item.objects.create(
             name="test item 1", grouped_order=grouped_order, price=1, max_limit=2
         )
@@ -686,12 +686,53 @@ class TestGroupedOrderDetailView:
         assert (
             "Numéro de téléphone <em>(facultatif)</em>" not in response.content.decode()
         )
-        grouped_order.is_phone_mandatory = False
+
+        grouped_order.required_phone = 1
         grouped_order.save()
         response = client.get(detail_url)
         assert "gr order test" in response.content.decode()
         assert "Numéro de téléphone <em>(facultatif)</em>" in response.content.decode()
 
+        grouped_order.required_phone = 0
+        grouped_order.save()
+        response = client.get(detail_url)
+        assert "gr order test" in response.content.decode()
+        assert '<label for="phone">' not in response.content.decode()
+
+    def test_email_not_required_display(self, client, other_user):
+        """a user orders something without entering phone when it is required"""
+        grouped_order = create_grouped_order(
+            days_before_delivery_date=5,
+            days_before_deadline=2,
+            name="gr order test",
+            orga_user=other_user,
+        )
+        assert grouped_order.required_email == 2
+        item = models.Item.objects.create(
+            name="test item 1", grouped_order=grouped_order, price=1, max_limit=2
+        )
+        detail_url = reverse(
+            "order:grouped_order_detail",
+            kwargs={
+                "code": grouped_order.code,
+            },
+        )
+        response = client.get(detail_url)
+        assert response.status_code == 200
+        assert "gr order test" in response.content.decode()
+        assert "Adresse mail <em>(facultatif)</em>" not in response.content.decode()
+        grouped_order.required_email = 1
+        grouped_order.save()
+        response = client.get(detail_url)
+        assert "gr order test" in response.content.decode()
+        assert "Adresse mail <em>(facultatif)</em>" in response.content.decode()
+
+        grouped_order.required_email = 0
+        grouped_order.save()
+        response = client.get(detail_url)
+        assert "gr order test" in response.content.decode()
+        assert '<label for="email">' not in response.content.decode()
+
 
 class TestGroupedOrderOverview:
     def test_get_overview(self, client_log):
diff --git a/la_chariotte/tests/test_order_views_order.py b/la_chariotte/tests/test_order_views_order.py
index 5ff4017..9b63768 100644
--- a/la_chariotte/tests/test_order_views_order.py
+++ b/la_chariotte/tests/test_order_views_order.py
@@ -268,3 +268,287 @@ class TestOrder:
         assert grouped_order.order_set.all().count() == 2
         assert grouped_order.total_price == 35 - order_price
         assert item.ordered_nb == 1
+
+    def test_order_phone_and_email__required(self, client_log):
+        """Someone places an order where email/phone is required"""
+        grouped_order = create_grouped_order(
+            days_before_delivery_date=5,
+            days_before_deadline=3,
+            name="gr order test",
+            orga_user=auth.get_user(client_log),
+        )
+        item = models.Item.objects.create(
+            name="test item 1", grouped_order=grouped_order, price=2
+        )
+
+        # some items are ordered
+        order_url = reverse(
+            "order:order",
+            kwargs={
+                "code": grouped_order.code,
+            },
+        )
+
+        # Phone and mail supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "test@mail.fr",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Phone and mail not supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "note": "",
+            },
+        )
+        assert response.status_code == 200
+        assert (
+            "L&#x27;adresse email est obligatoire pour cette commande groupée"
+            in response.content.decode()
+        )
+
+        # Phone and mail empty
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 200
+        assert (
+            "L&#x27;adresse email est obligatoire pour cette commande groupée"
+            in response.content.decode()
+        )
+
+        # Only phone supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 200
+        assert (
+            "L&#x27;adresse email est obligatoire pour cette commande groupée"
+            in response.content.decode()
+        )
+
+        # Only email supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "foo@bar.com",
+                "note": "",
+            },
+        )
+        assert response.status_code == 200
+        assert (
+            "Le numéro de téléphone est obligatoire pour cette commande groupée"
+            in response.content.decode()
+        )
+
+    def test_order_phone_and_email__optional(self, client_log):
+        """Someone places an order where email/phone is optional"""
+        grouped_order = create_grouped_order(
+            days_before_delivery_date=5,
+            days_before_deadline=3,
+            name="gr order test",
+            orga_user=auth.get_user(client_log),
+            required_phone=1,
+            required_email=1,
+        )
+        item = models.Item.objects.create(
+            name="test item 1", grouped_order=grouped_order, price=2
+        )
+
+        # some items are ordered
+        order_url = reverse(
+            "order:order",
+            kwargs={
+                "code": grouped_order.code,
+            },
+        )
+
+        # Phone and mail supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "test@mail.fr",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Phone and mail not supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Phone and mail empty
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Only phone supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Only email supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "foo@bar.com",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+    def test_order_phone_and_email__disabled(self, client_log):
+        """Someone places an order where email/phone is disabled"""
+        grouped_order = create_grouped_order(
+            days_before_delivery_date=5,
+            days_before_deadline=3,
+            name="gr order test",
+            orga_user=auth.get_user(client_log),
+            required_phone=0,
+            required_email=0,
+        )
+        item = models.Item.objects.create(
+            name="test item 1", grouped_order=grouped_order, price=2
+        )
+
+        # some items are ordered
+        order_url = reverse(
+            "order:order",
+            kwargs={
+                "code": grouped_order.code,
+            },
+        )
+
+        # Phone and mail supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "test@mail.fr",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Phone and mail not supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Phone and mail empty
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Only phone supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "0645632569",
+                "email": "",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
+
+        # Only email supplied
+        response = client_log.post(
+            order_url,
+            {
+                f"quantity_{item.pk}": [4, 0],
+                "first_name": "Prénom",
+                "last_name": "Nom",
+                "phone": "",
+                "email": "foo@bar.com",
+                "note": "",
+            },
+        )
+        assert response.status_code == 302
diff --git a/la_chariotte/tests/utils.py b/la_chariotte/tests/utils.py
index 6cdeca8..aea31a9 100644
--- a/la_chariotte/tests/utils.py
+++ b/la_chariotte/tests/utils.py
@@ -13,7 +13,8 @@ def create_grouped_order(
     days_before_deadline,
     name,
     orga_user,
-    is_phone_mandatory=True,
+    required_phone=2,
+    required_email=2,
 ):
     date = timezone.now().date() + datetime.timedelta(days=days_before_delivery_date)
     deadline = timezone.now() + datetime.timedelta(days=days_before_deadline)
@@ -22,7 +23,8 @@ def create_grouped_order(
         orga=orga_user,
         delivery_date=date,
         deadline=deadline,
-        is_phone_mandatory=is_phone_mandatory,
+        required_phone=required_phone,
+        required_email=required_email,
     )
     grouped_order.create_code_from_pk()
     grouped_order.save()