why does limited access occurred when someone sent or request invitation to access the site.
1. i created a sub-site and i include sp.user (sample user) to the owner group "full control" permission.
2. then i uploaded a file (excel file) on the document library.
3. i checked the permission of sp.user it was good and fine (full control permission).
4. next is, someone like to access my site but they don't have permission so they sent a request to access the site. ( i didn't yet approve or reject the request).
5. when i checked again the permission of sp.user the result is (full control, limited access).
i'm just wondering why limited access occur on the user permission, please explain the reason why it was happened and how can we prevent it.