Android user cannot open office documents without signing in.

Question

Quick background:

We run an on-premises Exchange server and use local active directory accounts.

(No integration to office 365 just Office 2013 suite)

When I open an office attachment from Android Outlook is opens fine. (Word, Excel and PowerPoint)

However now we have a new user that is told they must sign in to open office documents in their mobile device.

(Problem 1)

So they create an account and then it tells them:

Message: AADSTS500200: User account **** is a personal Microsoft account. Personal Microsoft accounts are not supported for this application unless explicitly invited to an organization. Try signing out and signing back in with an organizational account.

(Problem 2)

Two questions:

1) What do I have to do for this user to make it work like it always has?

2) In the future do we need to notify the cloud infrastructure every time we get a new user?

Answer 1

RESOLVED:

To bypass the prompt you must use the mobile device's phone number.

Only figured this out through trial and error, hopefully this will help someone else out.

Answer 2

Hi @mike hennessy ,

Thanks for your feedback above which shared more information and glad to know that your issue is resolved now! Since our forum has the policy that The question author cannot accept their own answer. They can only accept answers by others, and according to the scenario introduced here: Answering your own questions on Microsoft Q&A

I would make a brief summary of this post so that other forum members could easily find useful information here:

[Android user cannot open office documents without signing in - Summary]

Issue Symptom:
User must sign in to open office documents in their mobile device

Solution:
Must use the mobile device's phone number to bypass the prompt

You could "Accept Answer" for this summary to close this thread, and your action would be helpful to other users who encounter the same issue and read this thread. Thanks for your understanding!

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