diff --git a/counter/models.py b/counter/models.py
index 196b474d..0d373d36 100644
--- a/counter/models.py
+++ b/counter/models.py
@@ -27,8 +27,10 @@ from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
 from django.conf import settings
 from django.core.urlresolvers import reverse
+from django.core.validators import MinLengthValidator
 from django.forms import ValidationError
 from django.utils.functional import cached_property
+from django.core.exceptions import PermissionDenied
 
 from datetime import timedelta, date
 import random
@@ -85,6 +87,29 @@ class Customer(models.Model):
             letter = random.choice(string.ascii_lowercase)
         return number + letter
 
+    def add_student_card(self, uid, request, counter=None):
+        """
+        Add a new student card on the customer account
+        """
+        # If you are comming from a counter, only your connection to the counter is checked, not your right on the user to avoid wierd conflicts
+        if counter != None and (
+            counter.type != "BAR"
+            or not (
+                "counter_token" in request.session.keys()
+                and request.session["counter_token"] == counter.token
+            )
+            or len(counter.get_barmen_list()) < 1
+        ):
+            raise PermissionDenied
+        # If you are not comming from a counter, your permissions are checked
+        if not (
+            request.user.id == self.user.id
+            or request.user.is_board_member
+            or request.user.is_root
+        ):
+            raise PermissionDenied
+        StudentCard(customer=self, uid=uid).save()
+
     def save(self, allow_negative=False, is_selling=False, *args, **kwargs):
         """
             is_selling : tell if the current action is a selling
@@ -744,7 +769,9 @@ class StudentCard(models.Model):
 
     UID_SIZE = 14
 
-    uid = models.CharField(_("uid"), max_length=14, unique=True)
+    uid = models.CharField(
+        _("uid"), max_length=14, unique=True, validators=[MinLengthValidator(4)]
+    )
     customer = models.ForeignKey(
         Customer,
         related_name="student_cards",
diff --git a/counter/templates/counter/counter_click.jinja b/counter/templates/counter/counter_click.jinja
index aee9c309..521ec4c9 100644
--- a/counter/templates/counter/counter_click.jinja
+++ b/counter/templates/counter/counter_click.jinja
@@ -30,6 +30,16 @@
     {{ user_mini_profile(customer.user) }}
     {{ user_subscription(customer.user) }}
     <p>{% trans %}Amount: {% endtrans %}{{ customer.amount }} €</p>
+    <form method="post" action="{{ url('counter:click', counter_id=counter.id, user_id=customer.user.id) }}">
+        {% csrf_token %}
+        <input type="hidden" name="action" value="add_student_card">
+        {% trans %}Add a student card{% endtrans %}
+        <input type="input" name="student_card_uid" />
+        {% if request.session['not_valid_student_card_uid'] %}
+            <p><strong>{% trans %}This is not a valid student card UID{% endtrans %}</strong></p>
+        {% endif %}
+        <input type="submit" value="{% trans %}Go{% endtrans %}" />
+    </form>
 </div>
 <div id="bar_ui">
     <h5>{% trans %}Selling{% endtrans %}</h5>
diff --git a/counter/views.py b/counter/views.py
index fd51b20f..439eb87d 100644
--- a/counter/views.py
+++ b/counter/views.py
@@ -380,6 +380,7 @@ class CounterClick(CounterTabsMixin, CanViewMixin, DetailView):
         request.session["too_young"] = False
         request.session["not_allowed"] = False
         request.session["no_age"] = False
+        request.session["not_valid_student_card_uid"] = False
         if self.object.type != "BAR":
             self.operator = request.user
         elif self.is_barman_price():
@@ -389,6 +390,8 @@ class CounterClick(CounterTabsMixin, CanViewMixin, DetailView):
 
         if "add_product" in request.POST["action"]:
             self.add_product(request)
+        elif "add_student_card" in request.POST["action"]:
+            self.add_student_card(request)
         elif "del_product" in request.POST["action"]:
             self.del_product(request)
         elif "refill" in request.POST["action"]:
@@ -525,6 +528,19 @@ class CounterClick(CounterTabsMixin, CanViewMixin, DetailView):
         request.session.modified = True
         return True
 
+    def add_student_card(self, request):
+        """
+        Add a new student card on the customer account
+        """
+        uid = request.POST["student_card_uid"]
+        uid = str(uid)
+        if len(uid) != StudentCard.UID_SIZE:
+            request.session["not_valid_student_card_uid"] = True
+            return False
+
+        self.customer.add_student_card(uid, request, self.object)
+        return True
+
     def del_product(self, request):
         """ Delete a product from the basket """
         pid = str(request.POST["product_id"])
@@ -648,6 +664,7 @@ class CounterClick(CounterTabsMixin, CanViewMixin, DetailView):
         kwargs["basket_total"] = self.sum_basket(self.request)
         kwargs["refill_form"] = self.refill_form or RefillForm()
         kwargs["categories"] = ProductType.objects.all()
+        kwargs["student_card_max_uid_size"] = StudentCard.UID_SIZE
         return kwargs