The Sharepoint connector provides limited logging since most of the activity is performed on the Sharepoint server.
This article explains the current implementation and its limitation.
The logs for the Sharepoint integration are available directly inside the instance.
Access Admin Console > System > Settings > Jive for SharePoint and select the tab "SharePoint log viewer":
Click on the small dropdown on the right, and select the right SharePoint server if you have more than one.
At this point you should be able to see the log entries:
Unfortunately, this is the only place where logs are stored, as Jive does not retain old entries for the Sharepoint integration.
Refer to your Sharepoint team for historical log entries, which can be collected on the Sharepoint Server.