How to check SharePoint Site External Access

Problem Statement:

In CoreView how can I check  if SharePoint site or SharePoint objects shared Externally

Solution:

To see if a SharePoint site or objects are shared externally follow below steps:

1. Go to CoreView Portal
2. Navigate to Audit Tab on Top Menu
3. Select SharePoint Reports  and choose Sharing Operations (refer screenshot below).

Here you will see all the SharePoint Operations.

Key Terminologies:

• Target User or Groupname - To see who the file was shared with.
• Target User or Group type -  Identifies whether the target user or group is a Member, Guest, SharePointGroup, SecurityGroup, or Partner. 
• ObjectId - This column identifies the resource that was shared with the target user.

You can apply filter on column Targer user or Group type as "Guest" to see if the SharePoint site or objects are shared externally.

Please refer this MSDN article - Use sharing auditing in the audit log for more information on SharePoint Audit Activities.