Open your site > Site Settings > Site Actions > Manage Site Features.
Search For Content Management Interoperability Services Producer Feature.
Click on Active
On the SharePoint Central Administration website, click System Settings.
On the System Settings page, in the Farm Management section, click Configure alternate access mappings.
This is new Document Library you created for P6. In Libraries, Click add an App, select Document Library.
This is new folder you created in Document Library. Click File menu on top, select ‘New Folder’
To know user who has permission to your
Repository, click SETTING, under Permission and Management, click
‘Permission for this document library’.
NOTE: This username must be exactly matched with
Login Name in P6 Administration. For example, if you put ‘Administrator’
in P6 Configuration, it will allow you to connect SharePoint but you
will get permission issue, as user ‘Administrator’ does not have
permission in P6Doc repository.