For developers: Log service events
IOnReconcileExecutedEvent
This interface is implemented by all events that fire after a user has logged in and is being mapped to the Sitefinity CMS tracking cookie ID. There is only one such built-in event and you must subscribe to the interface rather than the class that implements it. 
In the event handler, you can access the following information:
    - UserId – the ID of the user that logged in
 
    - TrackingId – Sitefinity CMS tracking cookie ID (sf-trckngckie).
 
Your event handler must look like this:
IFlushSentencesCompletedEvent
This interface is implemented by all events that fire after the Log service buffer is flushed to the database. There is only one such built-in event and you must subscribe to the interface rather than the class that implements it. 
In the event handler, you can access the Items – a list of sentence items that are stored in the database after the Log service buffer flushed
Your event handler must look like this: