I'm creating Nintex forms and publishing them to the external platform/live with anonymous access. We need to embed the form into a public website, which i don't think would be an issue. The issue is how can we pass the username and information about the user logged on that public website (that is not a sharepoint site) into the Nintex form and submit the form with that user information.
The users will be selecting some options on the public site (again not a sharepoint site) and we want to be able to trim the options on the form based on their selections. Meaning that I want to be able to pass the data from the main site into the form somehow including the logged in person.