Prefill User Creation

Use the user parameter to dynamically preset user values by making a request with data such as email, phone, first_name, last_name, email_notify, sms_notify, template_id.
All attributes are optional. You only need to include keys for form fields you want prefilled. Admins can still edit attributes after they're prefilled.
For example a request to autofill is sent here:
The user create page would have the information filled out and the admin would only need to click Create after reviewing the prefilled information.