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Copilot Studio
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Error when passing Topic input to custom connector in Copilot Studio

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Posted on by CU31101039-0 7
I created a custom connector after connecting to a REST API and added it to a Topic, but I get an error when setting the input value.
Has anyone encountered a similar issue?

Error messages:
Destination agent was updated
Input ‘FOOD_NM_KR’ has been removed because variable data type not eligible to receive or return values.
Input binding ‘FOOD_NM_KR’ is not found, refresh this flow to get the latest bindings.

Please refer to the screenshot below (browser translation may be inaccurate).


FOOD_NM_KR is set to “Filled with AI inputs” in the connector input settings.
Var1 is a Topic input variable passed when the Topic runs.
I have already tried clearing the browser cache and creating a new Topic, but the issue persists.

 

Categories:
Copilot Studio skills development
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  • Suggested answer
    Valantis Profile Picture
    Valantis 6,735 on at
     

    Your FOOD_NM_KR input keeps getting removed because it's set to "Dynamically fill with AI" instead of using your variable. try this:

    1. Change the FOOD_NM_KR input from "Dynamically fill with AI" to "Custom value" and select Var1.

    2. Save the tool, then delete the Tool node in your topic and add it again. This refreshes the input schema and lets you rebind everything cleanly.

    3. If your tool calls a Power Automate flow, make sure the FOOD_NM_KR input is Text/String. Copilot Studio only supports String, Number, and Boolean for flow inputs. Object or array types will break.



       
    •  

    Let me know if that worked out for you.

  • Valantis Profile Picture
    Valantis 6,735 on at
     

    Just wanted to check in and see if everything is working now. If you still need any help, feel free to let me know.

    Also, if the issue is resolved, it would be great if you could mark the answer as solved so others with the same question can find it easily.

    Thanks and have a great day!

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