I need to add more info here.

In Paypal, I have the API set up OK and ZC installed (and processing payments properly) in one of my sites. Let's call it site1. The API signature username is something like info_api1.site1.com All is good.

However, I am now trying to get a second site up and running using the same PP account. Let's call it site2. So when configuring the Paypal Express module in site2, do I use the same API credentials? Or do I need to use something like info_api1.site2.com? As far as I can see, PP only allows me to create one set of credentials.

Vito