diff --git a/addons/google_calendar/models/google_sync.py b/addons/google_calendar/models/google_sync.py
index 17c8b7dbbe6..b5efa10a3f8 100644
--- a/addons/google_calendar/models/google_sync.py
+++ b/addons/google_calendar/models/google_sync.py
@@ -209,7 +209,7 @@ class GoogleSync(models.AbstractModel):
             error_log += "The event (%(id)s - %(name)s at %(start)s) could not be synced. It will not be synced while " \
                          "it is not updated. Reason: %(reason)s" % {'id': event_ids, 'start': start, 'name': name,
                                                                     'reason': reason}
-            _logger.error(error_log)
+            _logger.warning(error_log)
 
             body = _("The following event could not be synced with Google Calendar.") + Markup("<br/>") + \
                    _("It will not be synced as long at it is not updated.") + Markup("<br/>") + \