web
You’re offline. This is a read only version of the page.
close
Skip to main content

Notifications

Announcements

Community site session details

Community site session details

Session Id :
Power Platform Community / Forums / Power Automate / Assertion failed signa...
Power Automate
Unanswered

Assertion failed signature validation

(1) ShareShare
ReportReport
Posted on by 4

Hi,

 

I am currently checking out if our business can start to use Microsoft Bookings as our internal tool for planning meetings from bookers to staff. To do so we need to have the Power Automate running for handling creations, updates and deletions of meetings.

 

The Power Automate comes with a standard connector "Microsoft Bookings (preview)". I have seen quite a few blog posts and examples of how to use it, however I cant get started cause after creating the connection with my account (which works fine) I go to start the flow, the trigger can see my connection fine, but when i use the dropdown to select the booking of choice I get hit by the error message:

The dynamic invocation request failed with error: "Failed to get onbehalfof access token: connectionId=microsoftbookings, message={\"error\":\"invalid_grant\",\"error_description\":\"AADSTS50013: Assertion failed signature validation. [Reason - Key was found, but use of the key to verify the signature failed., Thumbprint of key used by client: 'ABEDB77DA95EBD98610F7866F4241B90FE4C4325', Found key 'Start=03/06/2024 17:03:32, End=03/06/2029 17:03:32', Please visit the Azure Portal, Graph Explorer or directly use MS Graph to see configured keys for app Id '00000000-0000-0000-0000-000000000000'. Review the documentation at https://docs.microsoft.com/en-us/graph/deployments to determine the corresponding service endpoint and https://docs.microsoft.com/en-us/graph/api/application-get?view=graph-rest-1.0&tabs=http to build a query request URL, such as 'https://graph.microsoft.com/beta/applications/00000000-0000-0000-0000-000000000000']. Trace ID: 327f55e3-ffd5-4193-bd6f-78220a177500 Correlation ID: a6fb7e8b-958d-4cd8-b984-152d8e4813ef Timestamp: 2024-04-04 15:15:32Z\",\"error_codes\":[50013],\"timestamp\":\"2024-04-04 15:15:32Z\",\"trace_id\":\"327f55e3-ffd5-4193-bd6f-78220a177500\",\"correlation_id\":\"a6fb7e8b-958d-4cd8-b984-152d8e4813ef\",\"error_uri\":\"https://login.windows.net/error?code=50013\"}".

 

Now first when I attempted this earlier today I assumed it might just be a glitch in the service but now I attempted later. From what I get from this message is that the dates are all messed up in the keys. I added this connector right now today 04/04/2024 17:03:32, yet the key is having a start date registered 03/06/2024 which is about two months in the future I assume?

 

To me this clearly seems like theres an ongoing bug with the connector - I would originally think this had something to do with the oAuth approval process, but I can add many other connectors just fine, its just the Microsoft Bookings (Preview) connector that seems to fail.

Ive searched through a couple forum resources, and I have removed the connector many times and reconnected it, I have attempted several browsers with and without incognito. I have cleared my browsers caches. I cannot make it work. 

 

Is there any ideas to solve this and or where would I report the bug if it continues to happen the next couple days?

Categories:
I have the same question (0)
  • michaelrachlitz Profile Picture
    4 on at

    I also cannot export any data from the bookings app.

     

    Description says "120 days of recent data starting april 5 2023" which makes no sense, since were in 2024 first of all and either going back to 2023 april 5th or any dates in the past 120 days is working. Its really awkward how dates seems to be completely screwed up in this application.

     

    Does no one else experience this, or can anyone perhaps try and test it out in a new instance of Bookings?

  • mpcov Profile Picture
    5 on at

    I did actually find an easier way...
    when you select integrations in your booking page, chose power automate, then there is an smtp address displayed. copy that address, then follow link "go to setup" to switch to power automate (note :a connection is created in the background by that step)

    matt_petry_0-1712783970361.png

    then, in the flow, configure the (e.g. "appointment") connection, but instead of waiting for the drop down to populate, select "enter custom value", and then copy that email address from the step before into the field.

    matt_petry_1-1712784173951.png

     

    Voila! 😉

     

  • ALP2 Profile Picture
    242 on at

    thanks for the tip. HAd the same issue

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Forum hierarchy changes are complete!

In our never-ending quest to improve we are simplifying the forum hierarchy…

Ajay Kumar Gannamaneni – Community Spotlight

We are honored to recognize Ajay Kumar Gannamaneni as our Community Spotlight for December…

Leaderboard > Power Automate

#1
Michael E. Gernaey Profile Picture

Michael E. Gernaey 525 Super User 2025 Season 2

#2
Tomac Profile Picture

Tomac 324 Moderator

#3
abm abm Profile Picture

abm abm 232 Most Valuable Professional

Last 30 days Overall leaderboard