Hi, We're looking to allow a sign-up flow into our application for specific people that already have practitioner records in our system (with no user associated). We would need to create the user, associate the prac record, and assign a policy all in one API call. Is this possible within Medplum's SDK or API?

Yep! The user invite endpoint handles all these cases: https://www.medplum.com/docs/auth/user-management-guide#invite-via-api https://www.medplum.com/docs/api/project-admin/invite