Body
Purpose
This article provides solutions for addressing the error "we were unable to complete your authentication flow" when accessing Microsoft Office 365 applications on a mobile device.
Target Audience
Prerequisites
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Ensure you have access to the Microsoft Authenticator app on your mobile device, if installed.
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Have your VU account credentials available.
Description
Users may encounter the error "we were unable to complete your authentication flow" when trying to access Microsoft Office 365 applications, such as Outlook, Teams, or SharePoint, from a mobile device. This error is caused by the application expecting a Two-Factor Authentication (2FA) response and attempting to route this response through the Microsoft Authenticator app rather than through Duo MultiFactor Authentication.
Resolution or Procedure Steps
Add Your Work or School Account to the Microsoft Authenticator App
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Open the Microsoft Authenticator app on your mobile device.
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Tap the plus icon in the top menu bar.

- Select Work or school account.

- Tap Sign in.

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Enter your work or school account credentials.
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Follow the prompts:
We can help if there are issues. To get assistance, please place a Duo Request ticket.
Common Issues/Troubleshooting