ERROR Exception while handling event Sitecore.ContentSearch.Events.IndexingFinishedEvent, Index <MY_INDEX> was not found


On your Sitecore Content Delivery Server, in your Sitecore logs, you see many occurrences of this message:

Heartbeat ERROR Exception while handling event Sitecore.ContentSearch.Events.IndexingFinishedEvent
Exception: System.ArgumentException
Message: Index my\_Index was not found
Source: Sitecore.ContentSearch
at Sitecore.ContentSearch.ContentSearchManager.GetIndex(String name)
at Sitecore.ContentSearch.Maintenance.EventHub.UpdateIndexTimestampDirectHandler(Object sender, EventArgs args)
at Sitecore.Events.Event.EventSubscribers.RaiseEvent(String eventName, Object\[\] parameters, EventResult result)
at Sitecore.Events.Event.RaiseEvent(String eventName, Object\[\] parameters)
at Sitecore.ContentSearch.Maintenance.EventHub.&lt;Initialize&gt;b\_\_b(IndexingFinishedEvent event)
at Sitecore.Eventing.EventProvider.RaiseEvent(Object event, Type eventType, EventContext context)


This is an error in the configuration of Sitecore itself.

The error message is caused because <MY_INDEX> is defined in your Content Authoring server configuration but not in your Content Delivery server.


  • Coveo for Sitecore 863+

  • Error Message

  • Content Delivery, Index


The first thing to do is to find the <MY_INDEX> index on your Content Authoring Server, to do so:

  1. On your Content Authoring Server, do a Sitecore showconfig (http://yourSitecoreInstance/sitecore/admin/showconfig.aspx).

  2. Search for the index that’s displayed in your Sitecore log (in this case, <MY_INDEX>).

  3. Determine in which configuration file the index is located.

  4. On your Content Delivery Server, edit the related configuration file by adding the reference to the missing index.

What's Next for Me?