Hi I'm evaluating Appian and have been going through the courses.
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I hope this will help.
Got it.
Does it mean I have to add external users(like customers) as a user in my Appian org? And then allow them to use my Appian org to login and visit the sites I build for them?
Yes, you need to add the customer as a user in Appian if you want to give them access to any protected pages.