AADSTS90072: User Account from identity provider does not exist in tenant and cannot access application

Question

Hi, we are getting this error on our of our SharePoint sites.

The question I have is the following, the SharePoint site in question is our own organizations site that is set up for all internal users to use.
A specific folder was created and shared externally and an external user uploaded documents into that folder.
Now, if an internal user wishes to access the documents added by the external users, we get that error message : "AADSTS90072: User Account from identity provider does not exist in tenant and cannot access application"

How would that be possible as the external user has a 3rd party account with us and if we try to access documents within our own site, we cannot.

Thank you.

Answer 1

@Drishti Maharaj

I share a folder with an external user, the external user upload a file into the folder, then the internal user can access the file.

How do you share a folder with external user? Through "Anyone with the link" or "Specific people"?

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Answer 2

The guest user who tried to sign in was not invited to the tenant.

Please Add guest users to your directory in the Azure portal to invite the guest user.