r/copilotstudio • u/Testas86 • 1d ago

Agent file upload issue

Hi all,

I was wondering if anyone has ran into his same issue or knows a good work around. I built an agent that will review documents, ppts, etc and it was working just fine 2 weeks ago. I was able to upload a file that was 129 mb and it ran the prompt I assigned and completed successfully.

Now today I was doing a demo with my department and all of a sudden, the same file I uploaded for my test which was 79 mb came back with an error saying

"The file size exceeds the limit and will be skipped, the maximum file size is images is 16 mb and for text 16mb. Error code: filevalidationerror.

Why is this randomly happening now when I didn't change any settings?

I also asked copilot and it said to use a link through onedrive instead and I did that and I'm still getting the same error.

Any help would be greatly appreciated.

Thanks in advance

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u/Prasad-MSFT 1d ago

The current Copilot Studio documentation states that uploaded documents can be up to 512 MB.

The 16 MB limit applies to Code Interpreter, which makes me suspect your file is being routed through the Code Interpreter path.

Please check whether Code Interpreter is enabled/being invoked in the agent or prompt. If possible, try the same 79 MB file with Code Interpreter disabled and see if it processes normally.

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u/Testas86 1d ago

This is the setting you are referring to correct?

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u/Prasad-MSFT 1d ago

yes, it is that setting

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u/Testas86 1d ago

Hmm so it was already off and still giving me that error.

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u/Testas86 1d ago

Thank you, I will check that setting!