In the effort to winnow down those times when a customer might ever have a reason to leave your own website, it is not possible for users to edit and complete a credential from the user account widget. This way, your attendees can completely provide all of the info for any printed badges, labels, or cards from your website.

There's nothing you need to do to set it up. As you might expect, a user must log in first--and your website needs to have an embedded account widget on it (usually in the navbar on the top).

Once logged in, they view the Account widget to manage their self-ness.

After pressing the Edit Credentials button, they'll be able to provide any optional or required info, even upload and crop/resize a photo(!).

To learn more about how to implement the sign-in, sign-out, and account widgets, check out the Embedded Widgets technical docs here.