Power Automate - Post adaptive card and wait for a response - Give OAuth connection error

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Posted on by DueNorth

Hi,

I had a Power Automate Cloud flow that was working fine. My password changed so it looks like my connection went bad.

So I tried to create a new connection, but it wouldn't work.

I am getting an OAuth connection error. I tried applying it outside the flow (e.g. through the main menu), and I can create a new connection. However I can't get it to be selectable within the Flow Editor and when I try to create a new one, I get the above error.

Any clue what else to try?

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Building flows

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Michael E. Gernaey 53,452 Super User 2025 Season 2 on at

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Hi @DueNorth

When you say main Menu, do you mean the Connections Tab?

Can you please show a picture of the Action, after you click the ... so we can see what connections it sees.

If it doesn't see the new connections then

1) Wrong environment

2) the action is corrupted. Delete it and recreate it.

3) Its a permission issue (but I'd have to verify that) either in Teams, the Team itself, etc.

If you create a brand new flow and attempt it does it work?

If so then I definitely recommend deleting the action. Saving, (if you can), and then re-adding it after you remove it.

I would also suggest trying to fix it in incognito.private mode browser instance.

But looking at your connections in the Connections tab can at least tell you if the connections are broken and can be fixed there and then possibly show up.

Also, you should use Connection References, versus Connections

If this helps you answer your issue please Mark as such.

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DueNorth 21 on at

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Yes, the connection tab within the main menu.

1) Right environment

2) Delete action and recreate doesn't work

3) Permission is good

... however it looks like if I create a brand new flow it works.

Any suggestions on how I can recover all the work I have done or do I need to rebuild the whole flow?

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DueNorth 21 on at

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Actually it might be this:

...

Upon testing... this is the case. I did it on the original flow and it worked fine.

Lesson: Always check on Microsoft's advisories for potential issues.

Thank you for your help and suggestions.

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