I have a number of external users in an external users' permissions group, which has access to a specific library in a larger site. They don't have access to the full site. For most users this works perfectly, but some users get the following error:

Access Denied [...] does not have permissions to access this resource. [...] Issue Type: User does not have permissions.

I've checked permissions comparing an external user whose access works and a user whose access doesn't. They have the same permissions at both the resource (contribute), and site (limited access). We've tried deleting the broken account wholly via Power Shell and re-creating it, but no dice.

This is SharePoint Online.

  • Need more details here...what authentication method is being used for external users? If using a trusted identity provider, is there a claims provider also?
    – DubStep
    Jan 8, 2020 at 17:47
  • SharePoint online ? Jan 8, 2020 at 20:18
  • It's SharePoint Online.
    – XYZ
    Jan 8, 2020 at 21:28
  • I don't know what the authentication method is beyond the Microsoft Authenticator app is required.
    – XYZ
    Jan 8, 2020 at 21:29

1 Answer 1


Please check which account accepted the SharePoint Online invitation for certain external user.

Navigate to user information list as below, click the broken external users name and check their email address


An article about issue when an external user accepts a SharePoint Online invitation by using another account and how to resolve it.

And go to Office 365 admin center->Users->Guest users, make sure the external users appear in this list.

  • I worked through that article down to step 7 and found the address is correct. There's no steps after that for a correct address. I can't get in the 365 Admin Center.
    – XYZ
    Jan 10, 2020 at 18:31

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