Failed to validate the signature of the actionable message card

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Posted on by cha_cha

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Has anyone figured out this error yet?

Flow has been working fine but suddenly got this error. No changes were made to the flow.

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cha_cha 4,932 Moderator on at

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Figured the most probable cause for this one. Our user had two emails. Previously working flow attempts were made using the right email. That not working one was because the user had been opening the approval notification via the context of his second account which was not the same email as the approver.

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Thant 4 on at

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Hello,
The one organization opening the email and approval is the same.
But we can't "Approve" and "Reject" the Button. Always show me this "Failed to validate ............................." the issue message box. Could you please suggest a solution for this issue if you are available?

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Community Power Pla... on at

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Hello, i have the same issue.
We can't toggle button to approve or reject.
Have you an solution or the root of the problem?

Starts 12-27-2022

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ChadH 13 on at

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My organization is also seeing this error recently. We have flows which send approval requests and many users are able to respond via Teams but not using the approve/reject options in the emails. I've checked that they are logged in correctly and the requests are being sent to individuals, not groups.

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ariannajuel 16 on at

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Also running into this issue. Just started today (12/27).
**Update**
Seems like this is a known issue and Microsoft is aware/working on a fix.

Microsoft 365 Alert – Service Degradation – Microsoft Power Automate in Microsoft 365 – Failures when rejecting or approving Microsoft Power Automate email approvals – NEW
27/12/2022 16:55:00 PM (GMT)
NHSmail Reference : INC33503238
Microsoft Reference : MF491924
Issue Status : OPEN
Issue Description : Failures when rejecting or approving Microsoft Power Automate email approvals.
More info : Users may receive an error stating “Failed to validate the signature of the actionable message card,” when attempting to approve or reject an email approval. Approvals can still be approved or rejected via Maker portal or Power Automate for Teams.
Scope of impact : Your organization is affected by this event, and any user attempting to approve or reject email approvals may be impacted.
Current Update : 27/12/2022 16:55:00 PM – Microsoft has confirmed that a network authentication component misconfiguration is inadvertently resulting in users being unable to approve or reject Microsoft Power Automate email approvals. They are developing a fix to correct the configuration and remediate impact.
Next update by: Tuesday, December 27, 2022, 6:00 PM

Screenshot 2022-1...

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bluesky63 2 on at

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Hi,
can anyone here send me the link for the fix ? I am facing the same issue
thank you !

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Veera1 8 on at

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I'm also facing the same issue since from 3+ days

Error.PNG

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menaka1997 6 on at

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Hi Team
I'm also facing the same issue since from 4+ days

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hematite13 4 on at

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I don't have two emails, and I'm still getting this error. This is not a solution for everyone.

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hematite13 4 on at

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Not solved!

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