diff --git a/chrono/manager/views.py b/chrono/manager/views.py
index f7e39fa1..40ad81ed 100644
--- a/chrono/manager/views.py
+++ b/chrono/manager/views.py
@@ -2007,24 +2007,28 @@ class UnavailabilityCalendarToggleView(ManagedDeskMixin, DetailView):
         try:
             self.desk.unavailability_calendars.get(pk=unavailability_calendar.pk)
             self.desk.unavailability_calendars.remove(unavailability_calendar)
-            message = _(
-                'Unavailability calendar %(unavailability_calendar)s has been disabled on desk %(desk)s.'
-            )
+            if self.desk.label and not self.desk.agenda.desk_simple_management:
+                message = _(
+                    'Unavailability calendar %(unavailability_calendar)s has been disabled on desk %(desk)s.'
+                )
+            else:
+                message = _('Unavailability calendar %(unavailability_calendar)s has been disabled.')
         except UnavailabilityCalendar.DoesNotExist:
             enabled = True
             self.desk.unavailability_calendars.add(unavailability_calendar)
-            message = _(
-                'Unavailability calendar %(unavailability_calendar)s has been enabled on desk %(desk)s.'
-            )
+            if self.desk.label and not self.desk.agenda.desk_simple_management:
+                message = _(
+                    'Unavailability calendar %(unavailability_calendar)s has been enabled on desk %(desk)s.'
+                )
+            else:
+                message = _('Unavailability calendar %(unavailability_calendar)s has been enabled.')
 
         if self.desk.agenda.desk_simple_management:
             for desk in self.desk.agenda.desk_set.exclude(pk=self.desk.pk):
                 if enabled:
                     desk.unavailability_calendars.add(unavailability_calendar)
-                    message = _('Unavailability calendar %(unavailability_calendar)s has been enabled.')
                 else:
                     desk.unavailability_calendars.remove(unavailability_calendar)
-                    message = _('Unavailability calendar %(unavailability_calendar)s has been disabled.')
 
         messages.info(
             self.request, message % {'unavailability_calendar': unavailability_calendar, 'desk': self.desk}
@@ -2797,11 +2801,17 @@ class TimePeriodExceptionSourceToggleView(ManagedDeskSubobjectMixin, DetailView)
         if source.enabled:
             source.disable()
             was_enabled = False
-            message = _('Exception source %(source)s has been disabled on desk %(desk)s.')
+            if source.desk.label:
+                message = _('Exception source %(source)s has been disabled on desk %(desk)s.')
+            else:
+                message = _('Exception source %(source)s has been disabled.')
         else:
             source.enable()
             was_enabled = True
-            message = _('Exception source %(source)s has been enabled on desk %(desk)s.')
+            if source.desk.label:
+                message = _('Exception source %(source)s has been enabled on desk %(desk)s.')
+            else:
+                message = _('Exception source %(source)s has been enabled.')
 
         if self.desk.agenda.desk_simple_management:
             for desk in self.desk.agenda.desk_set.exclude(pk=self.desk.pk):