Prefill fields in a web form instance

If you are using the Web Forms API we recommend that you prefill web form instance values by including the formValues object in your request body when you call the Instances: createInstance method. It’s also possible to do this through Docusign JS when you embed the web form instance but prefilling values through the createInstance request is more secure and stores the form values on the Docusign platform for future reference.

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