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In React, pass the same session options as client.start() as props on FormFilling. You do not pass rootElement. The component renders the hosted UI in .suki-form-filling for you.
React

Properties

Set height on .suki-form-filling before the hosted UI opens. Refer to Container sizing.

Next steps

StartOptions - Matching fields for JavaScript client.start(). Configuration - How to set forms, correlation_id, and container height. React integration - Provider and FormFilling wiring. Callbacks - When onSubmit, onReady, and onCancel run.
Last modified on October 26, 2026