What is PayPal SuperBlock and how do I enable it?
Update: The PayPal Superblock (PFEI block) should not be used effective 12/6/2010 and should be removed from any account that previously used it. PayPal SuperBlock is a setting that PayPal enables on the backend that prevents buyers from paying directly on PayPal and not going through ChannelAdvisor Checkout. To have this enabled, please email “payments-block@paypal.com” with the subject “PFEI Block” and ask to have the PayPal superblock put on your account. If you have buyers paying PayPal directly and you have set up Checkout Redirect, not having superblock is likely the reason.