Newly invited guest to SharePoint site getting error message

Frequent Contributor



I have invited a guest account to one of our sites, usually this works fine but for this new user he gets the error below. 

Any ideas why he would be getting this and what do i need to do so he can get access?


Thank you for your time,


4 Replies
I would get the user to sign out of all accounts on that machine and start afresh. It's strange that it works for some people and not others, but the page with the information regarding the config of guest users can be found a Good luck
Yes, you need to check the External collaboration settings in AAD
best response confirmed by Oliver McErlane (Frequent Contributor)

@Oliver McErlane You can allow the domain of user for external sharing.


Follow Microsoft official documentation for more information: Allow or block invitations to B2B users from specific organizations 

Please click Mark as Best Response & Like if my post helped you to solve your issue. This will help others to find the correct solution easily. It also closes the item. If the post was useful in other ways, please consider giving it Like.

Hello, perhaps I should've added some additional context and not only the reason for the prompt. Consider applying External Identities cross-tenant access settings for B2B when your partners are not using non-Azure AD identities.