This recipe allows you to send the member to a unique confirmation page after completing checkout. You can set a confirmation page for each membership level you offer. This is an alternative method to using the [membership] shortcode on the confirmation page to show unique content. (Thanks, Harsha!)
Note that each unique page can still use the standard [pmpro_confirmation] shortcode to display standard information (level name, account, and invoice information). This simply allows you to add more customized information before or after the standard shortcode output based on level.