allow external users to access shared files using one-time access code instead of login, is this supported/possbile

Question

We have a SharePoint modern communication site >> and using a site admin >> i shared a file with external user >> by selecting the file >> click on Manage Access >> Advanced >> stop sharing the permission >> add the external user with contribute permission.

Then the external user will get an email >> click on the file link inside the email >> login using Personal Microsoft account Or Organizational account.

now my question is if we can force the access to the file to be done by sending a one-time code to the external user email >> enter the code >> access the file.. is this possible?

Thanks

Answer 1

Yes, it can be achieved. You need to enable Microsoft SharePoint integration with Azure AD B2B first.

Microsoft official article：

Azure AD B2B provides authentication and management of guests. Authentication happens via one-time passcode when they don't already have a work or school account or a Microsoft account.