I am trying to figure out how to link a document library to Dynamics 365. When I try to "enable server-based SharePoint integration", it says that Absolute URL detected, and something about it no longer being supported. So, I am trying to find the relative URL but I have no idea how to get it. I need to get the relative URL of my SharePoint parent site and of the document library within the parent site.
I am on SharePoint Online that comes with Office 365 Business Professional, Plan 1.