Powerapp HTTP GET Request fails because of missing certificates

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Posted on by LuukAddvisor

Hi,

I am making a request to the following api:

https://api.kvk.nl/api/v1/basisprofielen/(some number)

With an api key. The thing is, this API uses custom certificates, which I can download. The problem is, I am not sure what I should do with these crt files as the http call is being made from microsofts servers. Hopefully my question makes sense.

The error message is Http request failed with status code 'TrustFailure' and status message: 'The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.'. Which makes sense, because the certificates used by kvk.nl are not by default trusted.

I am using the standard HTTP connector.

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lbendlin 8,617 Super User 2026 Season 1 on at

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Specify the pfx .

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LuukAddvisor 2 on at

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So I only have access to the public .crt files. I generated a PFX file following this:
https://stackoverflow.com/questions/23935820/how-can-i-create-a-p12-or-pfx-file-without-a-private-key

I am certainly misunderstanding something, as when I provide this I get the error:
"The provided authentication certificate is missing the private key. The private key is required to sign the request."

Which makes sense because I obviously don't have the private key...

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Jeroen J on at

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Hi @LuukAddvisor , did you ever solve this issue? I'm having the same challenge with our (dutch) KvK versus Power Automate. Wanted to connect via Linkedin (you'll see me visiting you), but then I realised that maybe more would like to benefit from your/our search.

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