diff --git a/calendar/inc/class.calendar_uilist.inc.php b/calendar/inc/class.calendar_uilist.inc.php
index ed3531eb58..dec2fd0e5f 100644
--- a/calendar/inc/class.calendar_uilist.inc.php
+++ b/calendar/inc/class.calendar_uilist.inc.php
@@ -557,6 +557,32 @@ class calendar_uilist extends calendar_ui
 		return $this->bo->total;
 	}
 
+	/**
+	 * Apply an action to multiple events, but called via AJAX instead of submit
+	 *
+	 * @param string $action
+	 * @param string[] $selected
+	 * @param bool $all_selected All events are selected, not just what's in $selected
+	 * @param bool $skip_notification
+	 */
+	public function ajax_action($action, $selected, $all_selected, $skip_notification = false)
+	{
+		$success = 0;
+		$failed = 0;
+		$action_msg = '';
+		$session_name = 'calendar_list';
+
+		if($this->action($action, $selected, $all_selected, $success, $failed, $action_msg, $session_name, $msg, $skip_notification))
+		{
+			$msg = lang('%1 event(s) %2',$success,$action_msg);
+		}
+		elseif(is_null($msg))
+		{
+			$msg .= lang('%1 event(s) %2, %3 failed because of insufficient rights !!!',$success,$action_msg,$failed);
+		}
+		Api\Json\Response::get()->message($msg);
+	}
+
 	/**
 	 * apply an action to multiple events
 	 *
@@ -699,9 +725,9 @@ class calendar_uilist extends calendar_ui
 							}
 						}
 
-						if(Api\Json\Response::isJSONResponse())
+						if(Api\Json\Request::isJSONRequest())
 						{
-							Api\Json\Response::get()->call('egw.refresh','','calendar',$id,'delete');
+							Api\Json\Response::get()->call('egw.refresh','','calendar',$recur_date ? "$id:$recur_date" : $id,'delete');
 						}
 					}
 					else
@@ -724,7 +750,7 @@ class calendar_uilist extends calendar_ui
 						{
 							$success++;
 
-							if(Api\Json\Response::isJSONResponse())
+							if(Api\Json\Response::isJSONRequest())
 							{
 								Api\Json\Response::get()->call('egw.dataStoreUID','calendar::'.$id,$this->to_client($this->bo->read($id,$recur_date)));
 								Api\Json\Response::get()->call('egw.refresh','','calendar',$id,'edit');
@@ -748,7 +774,7 @@ class calendar_uilist extends calendar_ui
 							if ($this->bo->set_status($event,$GLOBALS['egw_info']['user']['account_id'],$new_status,$recur_date,
 								false,true,$skip_notification))
 							{
-								if(Api\Json\Response::isJSONResponse())
+								if(Api\Json\Response::isJSONRequest())
 								{
 									Api\Json\Response::get()->call('egw.dataStoreUID','calendar::'.$id,$this->to_client($this->bo->read($id,$recur_date)));
 								}
diff --git a/calendar/js/app.js b/calendar/js/app.js
index 3623a76488..c66515eb4b 100644
--- a/calendar/js/app.js
+++ b/calendar/js/app.js
@@ -1891,24 +1891,39 @@ var CalendarApp = /** @class */ (function (_super) {
      * @param _senders
      */
     CalendarApp.prototype.cal_delete = function (_action, _senders) {
-        var backup = _action.data;
+        var all = _action.parent.data.nextmatch.getSelection().all;
+        var no_notifications = _action.parent.getActionById("no_notifications").checked;
         var matches = false;
+        var ids = [];
+        var cal_event = this.egw.dataGetUIDdata(_senders[0].id);
         // Loop so we ask if any of the selected entries is part of a series
         for (var i = 0; i < _senders.length; i++) {
             var id = _senders[i].id;
             if (!matches) {
                 matches = id.match(/^(?:calendar::)?([0-9]+):([0-9]+)$/);
             }
+            ids.push(id.split("::").pop());
         }
         if (matches) {
-            var popup = jQuery('#calendar-list_delete_popup').get(0);
-            if (typeof popup != 'undefined') {
-                // nm action - show popup
-                nm_open_popup(_action, _senders);
-            }
-            return;
+            // At least one event is a series, use its data to trigger the prompt
+            var cal_event_1 = this.egw.dataGetUIDdata(matches[0]);
         }
-        nm_action(_action, _senders);
+        et2_widget_event_1.et2_calendar_event.recur_prompt(cal_event.data, function (button_id, event_data) {
+            switch (button_id) {
+                case 'single':
+                case 'exception':
+                    // Just this one, handle in the normal way but over AJAX
+                    egw.json("calendar.calendar_uilist.ajax_action", [_action.id, ids, all, no_notifications]).sendRequest(true);
+                    break;
+                case 'series':
+                    // No recurrences, handle in the normal way but over AJAX
+                    egw.json("calendar.calendar_uilist.ajax_action", ["delete_series", ids, all, no_notifications]).sendRequest(true);
+                    break;
+                case 'cancel':
+                default:
+                    break;
+            }
+        }.bind(this));
     };
     /**
      * Confirmation dialog for moving a series entry
diff --git a/calendar/js/app.ts b/calendar/js/app.ts
index 638a9e6b64..f1905919c3 100644
--- a/calendar/js/app.ts
+++ b/calendar/js/app.ts
@@ -2111,8 +2111,11 @@ class CalendarApp extends EgwApp
 	 */
 	cal_delete(_action, _senders)
 	{
-		var backup = _action.data;
-		var matches = false;
+		let all = _action.parent.data.nextmatch.getSelection().all;
+		let no_notifications = _action.parent.getActionById("no_notifications").checked;
+		let matches = false;
+		let ids = [];
+		let cal_event = this.egw.dataGetUIDdata(_senders[0].id);
 
 		// Loop so we ask if any of the selected entries is part of a series
 		for(var i = 0; i < _senders.length; i++)
@@ -2122,19 +2125,31 @@ class CalendarApp extends EgwApp
 			{
 				matches = id.match(/^(?:calendar::)?([0-9]+):([0-9]+)$/);
 			}
+			ids.push(id.split("::").pop());
 		}
 		if (matches)
 		{
-			var popup = jQuery('#calendar-list_delete_popup').get(0);
-			if (typeof popup != 'undefined')
-			{
-				// nm action - show popup
-				nm_open_popup(_action,_senders);
-			}
-			return;
+			// At least one event is a series, use its data to trigger the prompt
+			let cal_event = this.egw.dataGetUIDdata( matches[0]);
 		}
+		et2_calendar_event.recur_prompt(cal_event.data,function(button_id,event_data) {
+			switch(button_id)
+			{
+				case 'single':
+				case 'exception':
+					// Just this one, handle in the normal way but over AJAX
+					egw.json("calendar.calendar_uilist.ajax_action",[_action.id, ids, all, no_notifications]).sendRequest(true);
+					break;
+				case 'series':
+					// No recurrences, handle in the normal way but over AJAX
+					egw.json("calendar.calendar_uilist.ajax_action",["delete_series", ids, all, no_notifications]).sendRequest(true);
+					break;
+				case 'cancel':
+				default:
+					break;
+			}
+		}.bind(this) );
 
-		nm_action(_action, _senders);
 	}
 
 	/**