Sharepoint Issues

Question

I have a client that regularly shares files with me via Sharepoint, however, in the last week when I input my e-mail address to request a verification code rather than sending me the code I am simply redirected to the Microsoft log in page which give me no access to the files. Is this something to do with my end or theirs? They say they haven't changed anything and neither have I.

Answer 1

Hello @Justine H,

Based on the information you provided, I understand that when accessing a SharePoint file shared externally, you are being redirected to the Microsoft sign-in page instead of receiving a one-time passcode (OTP) via email.

This behavior is expected and is related to a Microsoft update to external sharing authentication. Microsoft has announced the retirement of the SharePoint and OneDrive email one-time passcode (OTP) authentication experience. As part of this change, external users may be required to authenticate with the account credential rather than receiving a passcode directly through email.

The purpose of this update is to improve security, identity verification, and collaboration management for organizations. As a result, external users will increasingly be recognized as guest users in the organization's tenant and redirected to the Microsoft sign-in page to complete authentication instead of using the email OTP method.

Microsoft has officially communicated this change through the Microsoft 365 Message Center. You can share the following announcement with the organization for reference:

https://admin.cloud.microsoft/?ref=MessageCenter/:/messages/MC1243549

Please review the Message Center announcement for additional details regarding the timeline and impact of this change.

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