Waiting list: Show warning if event is not live

src/pretix/control/templates/pretixcontrol/waitinglist/index.html

@@ -31,6 +31,11 @@
                                     here immediately. If you want, you can also send them out manually right now.
                                 {% endblocktrans %}
                             </p>
+                            {% if not running %}
+                                <div class="alert alert-warning">
+                                    {% trans "Currently, no vouchers will be sent since your event is not live or is not selling tickets." %}
+                                </div>
+                            {% endif %}
                         {% else %}
                             <p>
                                 {% blocktrans trimmed %}

src/pretix/control/views/waitinglist.py

@@ -174,6 +174,12 @@ class WaitingListView(EventPermissionRequiredMixin, PaginationMixin, ListView):
 
         ctx['any_avail'] = any_avail
         ctx['estimate'] = self.get_sales_estimate()
+
+        ctx['running'] = (
+            self.request.event.live
+            and (self.request.event.has_subevents or self.request.event.presale_is_running)
+        )
+
         return ctx
 
     def get_sales_estimate(self):