diff --git a/src/NzbDrone.Core/Notifications/Notifiarr/NotifiarrProxy.cs b/src/NzbDrone.Core/Notifications/Notifiarr/NotifiarrProxy.cs
index 2be620c4e..ec89c48d0 100644
--- a/src/NzbDrone.Core/Notifications/Notifiarr/NotifiarrProxy.cs
+++ b/src/NzbDrone.Core/Notifications/Notifiarr/NotifiarrProxy.cs
@@ -53,7 +53,10 @@ namespace NzbDrone.Core.Notifications.Notifiarr
                         _logger.Error("HTTP 401 - API key is invalid");
                         throw new NotifiarrException("API key is invalid");
                     case 400:
-                        throw new NotifiarrException("Unable to send notification. Ensure Lidarr Integration is enabled & assigned a channel on Notifiarr");
+                        // 400 responses shouldn't be treated as an actual error because it's a misconfiguration
+                        // between Lidarr and Notifiarr for a specific event, but shouldn't stop all events.
+                        _logger.Error("HTTP 400 - Unable to send notification. Ensure Lidarr Integration is enabled & assigned a channel on Notifiarr");
+                        break;
                     case 502:
                     case 503:
                     case 504: