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Authentication Failed

When I Sign In with diferrent accounts show this error.



Accepted Solutions

Yep, came back up for us as well. Microsoft has issued this notice on the downtime:


Warning: MITIGATED: Between 2018-04-20 08:25 PDT and 2018-04-20 10:40 PDT, users were unable to log into Flow.

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Not applicable

All of my users are getting the same message when logging into flow.


This just started in the last hour.


If you contact support, you may be asked to provide the following details:

Time: 2018-04-20T16:15:50.7376809Z
Session ID: 5dc8b914ccac4196bb78b69d7de43c21
Kudo Collector
Kudo Collector

We are also getting this error in Georgia. Looks like an authentication service or server has kicked the bucket...

The same here...

Regular Visitor

Same issue here!

Helper I
Helper I

Same in Brazil

At least the Flows themselves seem to be working...

Same situation here - East coast USA.

New Member

Same here in US

Advocate I
Advocate I

Same here, I just opened a ticket with Microsoft.

Frequent Visitor

same here-- timing of this is terrible. 🙂 

I'm not sure there's ever a *good* timing for this kinda thing 😉

Frequent Visitor

Image result for Agreed meme

Oooo it just magicly came back...  Still no call back from Microsoft for my ticket.

Yep, came back up for us as well. Microsoft has issued this notice on the downtime:


Warning: MITIGATED: Between 2018-04-20 08:25 PDT and 2018-04-20 10:40 PDT, users were unable to log into Flow.

Community Support
Community Support

Hi @Anonymous,


I have made a test on my side and don't have the issue that you mentioned. My Microsoft Flow portal opens well as below:15.JPG


Please take a try to clear cache of your browser and try to sign in again to check if the issue is solved. Please also check if your Microsoft Flow license is expired and you have provide a proper Microsoft Account to sign in Microsoft Flow.


If the issue still exists, please consider take a try to submit an assisted ticket within the following link:



Best regards,


Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Frequent Visitor

When my supervisor tried to approve a PTO request it gave her the error message that says Authentication failed. Why is this?

I used a SharePoint list and Power Automate flow with two approvals.

Kudo Collector
Kudo Collector

@Ksim It sounds like you need to ask a separate, new question with details about your flow included.

Frequent Visitor

Good afternoon,

My flow is a PTO request from staff members that flows to two managers for approval.

1. Staff member completes the SharePoint form

2. Item is added to Leave Request list.

3. The approval goes to their direct supervisor as listed in Office 365 Organization profile.

4. If Direct Supervisor Rejects -Email is sent of status - Rejected 

5. If direct supervisor approves - it goes to my manager for Final approval.

6. If my manager Rejects - email goes staff member that request is rejected.

7. IF my manager Approves

8. Item is created on a PTO Calendar that everyone can view.

9. Email goes to staff member who requested PTO with Status - Approved

My manager is the direct approver for my teams PTO requests as well as final approver for all other company employees(total 45 employees); but she is not the direct manager for all employees. When she tried to approve a request, she gets an error message that says " Authentication Failed." I Hope someone can help, Please! Thank you!

My Flow: (I hope you can see it ok).

PTO Request Flow.png




































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