The following information should be included in the ZC documentation.
In the payment module it shows Paypal Express Checkout - paypalwpp. I assume wpp stands for Website Payment Pro. At Paypal, ZC is listed as WPP capable. See http://solutions.paypal.com/procarts...?q=&pr=0:10000Website Payments Pro
v1.3.7 does *not* currently offer Website Payments Pro support (ie: specifically the ability to collect Credit Card data on *your* site and send it to PayPal for authorization --- all without sending the customer over to the PayPal site to use their PayPal account to login and pay you). That will come later in another release.
NOTE: Website Payments Pro requires payment of a monthly credit-card processing fee, billed to your PayPal business or premier account. Further details available on the PayPal Website.
With all that assuring information I went ahead and registered a WPP account and spent 4hrs of set up, testing, phone calls to Paypal, more testing, more calls (which evidently the PP techs don't know that WPP don't work with ZC). After much frustration I figured I'd check with ZC only to find that it's not WPP capable.
ZC should contact PP and let them know it is not yet WPP capable otherwise people will be downloading ZC based on their list and suffer greater frustration than I did and just post negative reports about ZC. This is misleading information. Also it should be a clear statement in the documentation.