You can set which default offer popup you'd like to present to an anonymous visitor or a registered contact who should upgrade to the next tier. The popup selection is from the ones already configured in the Offers > Popups section.
Default Offer for Anonymous Visitors
When an anonymous visitor reaches their article limit and would like to read a restricted article, you can set a default popup for them. This same popup will also appear when an anonymous visitor tries to open the account menu by clicking on your logo. You can choose between a Signup or Payment Popup.
Default Offer for Registered Contacts
You can also set a default popup for when a registered user is logged in and tries to read a restricted article where they do not have reading privileges. This same popup will also appear when registered contact tries to checkout from the account menu. You will only be able to choose a Payment Popup.