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HTTP Request API Issue

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Posted on by kdewitt

I have a flow that makes an HTTP API connection. It works perfectly fine. I can run it as many times as I want, and it works great until I start making changes to other actions in the flow or even just save it without making any changes. Once changes are made it gives an error on the HTTP action that says "Could not load the certificate private key. Please check the authentication certificate password is correct and try again.", but nothing has been changed for that action. If I wait till the next day, the flow will work again along with any changes I made from the day before. The 3rd party I am making a connection to has record of all the successful calls but none of the failures. So the calls never even make it out of Power Automate.

Has anyone had this issue? What did you do to fix it?

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EmadBeshai 806 Moderator on at

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Re: HTTP Request API Issue

Hi @kdewitt ,

Please have a look to this Could not load the certificate private key. Please check the authentication certificate password is correct and try again - Microsoft Q&A

And this also Could not load the certificate private key. Please check the authentication certificate password is correct and try again. – rakhesh.com

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kdewitt 2 on at

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Re: HTTP Request API Issue

This isn't quite the same issue. Everything about the request works fine. We have all the set up done correctly. And it works until changes are made in other areas of the flow then the flow will stop working for the rest of the day but work fine the next day.

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EmadBeshai 806 Moderator on at

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Re: HTTP Request API Issue

Hi @kdewitt ,

I know this is a temporary error because you are using self-signed certificates.
The error message told that the flow could not load the certificate private key.
Please take a try to use base-64 encoding the certificate string refer to link below:
https://docs.microsoft.com/en-us/azure/connectors/connectors-native-http

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