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Power Platform Community / Forums / Copilot Studio / RegEx in Copilot Studio
Copilot Studio
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RegEx in Copilot Studio

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Posted on by nicox 169
I want to perform a RegEx on the user query/question but it is not possible because the functions match and ismatch are not supported in Copilot Studio PowerFX. For example, I want to go to a specific topic if the query contains XXX-XX-XX pattern.
Anyone know how to do this?
Thank you.
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General topics
  • Suggested answer
    Vinoth Selvam Profile Picture
    Vinoth Selvam 1,597 Super User 2025 Season 1 on at
    Hi  nicox,
     
    You can use PowerFX's existing string functions like Mid, Left, and Right to isolate parts of the string.
     
    But the Actual Solution for your problem could be using Inputs in Topics. The Description that you provide in LLM itself is capable to extract and identify the required pattern.
     
    You can read through the below post that i have written.
     
     
     
    Hope this can solve your problem.
     
    Thanks.
  • Low Code No Code Pro Code Ninja Profile Picture
    Low Code No Code Pr... 9 on at
    We can implement regex by creating custom entities in Copilot studio.

    Refer to this blog: https://www.microsoft.com/en-us/microsoft-copilot/blog/copilot-studio/regex-regular-expression-entity-support-in-power-virtual-agents/
    regex-as-entity.png

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