When someone needs a login, typically if they purchased a product that has a site or a space associated with it, we will automatically set people up with a Simplero ID to log in and notify them about it by email.
The way it works is this:
A Simplero Id can also be added via the participants screen within a product by scrolling down to the participant box
Now your user will have a Simplero ID and will receive en email with the login ID and password
The Simplero ID can also be removed from within the purchase if you scroll down to the participant section.