This is the first time I'm implementing DWA. Requirement is to send a link to external user(doesn't have an operator record) in order to upload supporting documents which should get attached to work object.
Here are the steps I followed
-> Created a new user with "External" prefix.(e.g. External.User)
-> Created a new Access group and it refers to User portal by default. Set this access group as default for External user.
-> Updated PublicLinkURL with my Pega instance url(host/prweb/PRServlet).