Power Platform Community Forum Thread Details

Failed to refresh access token - error for one user

Hi all,

I have a problem with a flow triggered by a Power App. The solution is in the test evironment where there are 3 users, the flow is working for two of us, but fails for the third person with the error message :

Error from token exchange: Runtime call was blocked because connection has error status: Enabled| Error, and office365 is in the block list. Connection errors: [ParameterName: token, Error: Code: Unauthorized, Message: 'Failed to refresh access token for service: aadcertificate. [....] Error: Failed to acquire token from AAD: {"error":"invalid_grant","error_description":"AADSTS700082: The refresh token has expired due to inactivity. The token was issued on 2023-12-21T06:36:44.8597886Z and was inactive for 90.00:00:00.

The flow is very simple : Trigger by PowerApps -> Switch (Language) -> Send Email V2

Additional information in case it's helpful :

This user was removed from the test environment a while ago and has been readded recently.
They have told me that they changed their password about a month ago.
I am using a Power Apps premium (per user) licence, the second user is consuming a per app licence and the person having an issue has a developer licence (this was an error and we're trying to change it).
They also receive an error message when accessing the application to say they are not authorised, but are then able to use it
There are 4 per app licences on the environment but only 2 are being consumed

Can anyone shed some light on what is going on and how to resolve it ?

Thanks

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