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Attach file to Copilot's message

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Posted on by TP-21011523-0

Hi!

I am looking for ways to add images to the response of my Copilot. I know it is possible to post links to publicly available images, but in my case it won't work.

Ideally I would like to pull base64 content of an image via Power Automate and then post it in Teams chat as a file.

There is an option to add file to the message, but it requires a variable of type 'File'. I tried using JSON like below but it did not work (Variable is being set to an incorrect type. Assigned: String, expected: File). I also tried using a Record variable but with no luck...

Does anyone know how to create a variable of type 'File'?

Structure that did not work:

{
"fileName": "example.pdf",
"fileContent": "<Base64EncodedContentHere>"
}

Option for adding files:

Thanks,

Tim

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Topic creation & management

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

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Hello Tim,

yes, that's a new feature, so I guess we need to wait a bit - it's not fully implemented as you cannot format the variable as File type.

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

Interested in GenAI? Visit my site!

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PC-25031902-0 2 on at

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Hi, it's a bit disturbing, we have that feature available but there is no documentation nor tutorial about...

I hope it is well released soon...

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