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how to load dynamic fields in custom connector.

I'm trying to create a custom connector as an action in which i want have a dropdown which will be populated from an api and depending on the selection of dropdown value I want to show the fields below, I'm not able to find any tutorial on how to achieve this. it would be greate if you guys can point me to right resources.



Community Support
Community Support

Hi @Anonymous,


Do you want to display the appropriate UI within your custom connector based on the selection of dropdown value?


I think the 'x-ms-dynamic-schema' OpenAPI extension could achieve your needs. Please check and see if the following article would help in your scenario:

x-ms-dynamic-schema OpenAPI extension



Best regards,


Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
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Thanks Kris, I will try this and get back If I face any issues.



Ganesh Anthati.

Hello, @Anonymous!


Have you had a chance to apply @v-xida-msft ‘s recommendation to adapt your Flow? If yes, and you find that solution to be satisfactory, please go ahead and click “Accept as Solution” so that this thread will be marked for other users to easily identify!



Thank you for being an active member of the Flow Community!



(Flow Community Admin)

- Gabriel
Community Manager
Power Automate | Power Virtual Agents
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