While creating a connection giving an unlabelled error

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Posted on by AK-17040245-0

I’m trying to create a new SFTP connection in Power Automate using an SSH key.
The connection works perfectly when tested locally, but in Power Automate, it shows a red strip with an exclamation mark, without providing any error code or detailed error message.
Has anyone faced a similar issue or know what might be causing this?

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Michael E. Gernaey 53,335 Super User 2025 Season 2 on at

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Hi @AK-17040245-0

I am not sure I understand. It shows a clear 502 error which means either

1. wrong uri

2. wrong credentials

3. wrong token

and several other things.

But are you saying the 502 error is unrelated?

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AK-17040245-0 2 on at

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Hi Michael,

Thanks for the reply! Yes, I did notice the 502 error; you’re right.
I’m just trying to figure out whether the 502 is coming from Power Automate trying to connect to my SFTP server, or if it’s failing earlier (during connection setup).

The SFTP connection works perfectly when I test it locally (using the same SSH key), but in Power Automate, it shows the red error bar without giving detailed information.

Do you think it could be because Power Automate can’t reach my SFTP server publicly?
Or could it also be a key format or SSH authentication issue, even if the URI is correct?

Would appreciate any further advice you might have.
Thank you again!

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