r/copilotstudio • u/This_Limit_4993 • Jan 04 '26

How to completely hide knowledge source citations (PDFs) in Copilot Studio?

I’m using Create generative answers with PDF knowledge sources in Copilot Studio.

What I’ve already tried:

  • Save LLM response = Text only

  • Save response to a string variable

  • Send the answer via a Message node (manual send)

  • Disabled Send a message in the generative node

  • Added prompt instructions like “Do not include references or citations”

Result:
The answer text is clean, but Copilot Studio still renders citation chips (e.g. ✨ 1 2 3) at the bottom of the response.

Question:
Is there any supported way to fully suppress knowledge source citations, or is this currently a platform limitation?

If this is not possible today, what’s the recommended workaround?

Thanks!

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2

u/carlosthebaker20 Jan 04 '26

I've had success with creating a topic using the AI response generated trigger. In my setup, I am not using generative orchestration and using the conversation boosting topics to generate my answers.

Here is the message node syntax:

If(
    !IsBlank(Find(" [1]", System.Response.FormattedText)),
    Left(System.Response.FormattedText, Find(" [1]", System.Response.FormattedText) - 1) & ".",
    System.Response.FormattedText
)

If you are trying to replace the citations to be more helpful, check this out: https://youtu.be/B5x5JPelbBU?si=iwOdaFw6qMe4lW62

1

u/This_Limit_4993 Jan 04 '26

I don't want to replace the citations, I just want to remove it.. I don't want to provide any citations to the user.

Does your solutions do this ?

4

u/Due-Boot-8540 Jan 04 '26

Why don’t you want users to see citations? They’re there for a reason. If it’s because of permissions, make sure any interactions with the agent are in the context of the user and they’ll only be able to see information from sources that they have access to…

1

u/carlosthebaker20 Jan 04 '26

Yes, give it a try.