ServiceNow connector error code 400. Error Code: ConnectorRequestFailure

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Posted on by JL-12070817-0

Does anyone know what are the possible causes of this error? The connector ‘ServiceNow’ returned an HTTP error with code 400. Error Code: ConnectorRequestFailure Thank you.

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Calling actions from Copilot Studio

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adilei on at

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Can you test the same request from a Power Automate flow?

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dipteshbosedxc 14 on at

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I have the same issue going on with Copilot Studio. Microsoft - Kindly remove this connector from Power Platform if it does not work for so many months.

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Artur Stepniak 1,539 Super User 2025 Season 2 on at

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Hello,

I see that you're not using it properly. HTTP 400 is a bad request which means that the request body wasn't correctly formatted. On the screenshot I see that you're using whole user prompt as a query string. That's why it shows an error.

@dipteshbosedxc what problem do you encounter?

In case of any other questions, let me know. If the answer helped you, mark it, so that others can benefit from it.

Best regards,

Artur Stepniak

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