Add Site Collection Admin errors
The following sections show some common causes for this error, as well as possible solutions.
- If your azure domain does not end in ".onmicrosoft.com", go to Customized SharePoint homepage URL
Customized SharePoint homepage URL
FortiCASB's "Add Site Collection Admin" feature currently only supports the default azure domain format (abc.onmicrosoft.com). If you have a custom SharePoint homepage URL, you will have to allow collection manually.
- From your SharePoint Online Admin Center, click user profiles.
- Use the "Find profiles" feature to find a user, right-click that user's account name, then click Manage site collection owners.
- In the "Site Collection Administrators" box, enter your admin username, then click the icon.
- Click OK. FortiCASB can now audit this user's OneDrives.
- Repeat steps one through four for each user you wish to audit.
- From the FortiCASB Office 365 authentication menu, check "Prefer not to provide".