diff --git a/.fabmanager-version b/.fabmanager-version
index 26f8b8bcd..62e64205b 100644
--- a/.fabmanager-version
+++ b/.fabmanager-version
@@ -1 +1 @@
-2.4.5
\ No newline at end of file
+2.4.6
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d256af89b..ed68f9cc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog Fab Manager
 
+## v2.4.6 2016 Novembre 30
+
+- Change display of message about coupon application status
+- Fix a bug: compute price API return error 500 if reservable_id is not provided 
+
 ## v2.4.5 2016 November 29
 
 - Ability to create coupons with cash amounts (previously only percentages were allowed)
diff --git a/app/assets/javascripts/directives/coupon.coffee.erb b/app/assets/javascripts/directives/coupon.coffee.erb
index 4392297bf..4b42558f8 100644
--- a/app/assets/javascripts/directives/coupon.coffee.erb
+++ b/app/assets/javascripts/directives/coupon.coffee.erb
@@ -1,4 +1,4 @@
-Application.Directives.directive 'coupon', [ '$rootScope', 'Coupon', 'growl', '_t', ($rootScope, Coupon, growl, _t) ->
+Application.Directives.directive 'coupon', [ '$rootScope', 'Coupon', '_t', ($rootScope, Coupon, _t) ->
   {
     restrict: 'E'
     scope:
@@ -19,6 +19,9 @@ Application.Directives.directive 'coupon', [ '$rootScope', 'Coupon', 'growl', '_
       # Binding for the code inputed (see the attached template)
       $scope.couponCode = null
 
+      # Code validation messages
+      $scope.messages = []
+
       # Re-compute if the code can be applied when the total of the cart changes
       $scope.$watch 'total', (newValue, oldValue) ->
         if newValue and newValue != oldValue and $scope.couponCode
@@ -28,6 +31,7 @@ Application.Directives.directive 'coupon', [ '$rootScope', 'Coupon', 'growl', '_
       # Callback to validate the code
       ##
       $scope.validateCode = ->
+        $scope.messages = []
         if $scope.couponCode == ''
           $scope.status = 'pending'
           $scope.coupon = null
@@ -36,13 +40,19 @@ Application.Directives.directive 'coupon', [ '$rootScope', 'Coupon', 'growl', '_
             $scope.status = 'valid'
             $scope.coupon = res
             if res.type == 'percent_off'
-              growl.success(_t('the_coupon_has_been_applied_you_get_PERCENT_discount', {PERCENT: res.percent_off}))
+              $scope.messages.push(type: 'success', message: _t('the_coupon_has_been_applied_you_get_PERCENT_discount', {PERCENT: res.percent_off}))
             else
-              growl.success(_t('the_coupon_has_been_applied_you_get_AMOUNT_CURRENCY', {AMOUNT: res.amount_off, CURRENCY: $rootScope.currencySymbol}))
+              $scope.messages.push(type: 'success', message: _t('the_coupon_has_been_applied_you_get_AMOUNT_CURRENCY', {AMOUNT: res.amount_off, CURRENCY: $rootScope.currencySymbol}))
           , (err) ->
             $scope.status = 'invalid'
             $scope.coupon = null
-            growl.error(_t('unable_to_apply_the_coupon_because_'+err.data.status))
+            $scope.messages.push(type: 'danger', message: _t('unable_to_apply_the_coupon_because_'+err.data.status))
+
+      ##
+      # Callback to remove the message at provided index from the displayed list
+      ##
+      $scope.closeMessage = (index) ->
+        $scope.messages.splice(index, 1);
   }
 ]
 
diff --git a/app/assets/templates/shared/_coupon.html.erb b/app/assets/templates/shared/_coupon.html.erb
index 7e00a29f5..bc4552ece 100644
--- a/app/assets/templates/shared/_coupon.html.erb
+++ b/app/assets/templates/shared/_coupon.html.erb
@@ -3,7 +3,7 @@
 
   <div ng-show="code.input">
     <label for="coupon_code" translate>{{ 'code_' }}</label>
-    <div class="input-group">
+    <div class="input-group m-b">
       <input type="text"
              class="form-control"
              name="coupon_code"
@@ -17,5 +17,7 @@
         <i class="fa fa-check" ng-show="status == 'valid'"></i>
       </span>
     </div>
+
+    <uib-alert ng-repeat="msg in messages" type="{{msg.type}}"  close="closeMessage($index)">{{msg.message}}</uib-alert>
   </div>
 </div>
diff --git a/app/controllers/api/prices_controller.rb b/app/controllers/api/prices_controller.rb
index 2c9dacd10..19acd769e 100644
--- a/app/controllers/api/prices_controller.rb
+++ b/app/controllers/api/prices_controller.rb
@@ -41,7 +41,7 @@ class API::PricesController < API::ApiController
     _user = User.find(_price_params[:user_id])
     # reservable
     if _price_params[:reservable_id].nil?
-      @amount = {elements: nil, total: 0}
+      @amount = {elements: nil, total: 0, before_coupon: 0}
     else
       _reservable = _price_params[:reservable_type].constantize.find(_price_params[:reservable_id])
       @amount = Price.compute(current_user.is_admin?, _user, _reservable, _price_params[:slots_attributes], _price_params[:plan_id], _price_params[:nb_reserve_places], _price_params[:tickets_attributes], coupon_params[:coupon_code])