You need a PayPal-Business-Account to use the free PayPal-Services. If you do not already have a PayPal-Business-Account, you can easy signup by clicking on the PayPal-Logo
If You're done please enter your PayPal-Data:
PayPal BusinessID: Your PayPal-Account-ID
URL of the PayPal-Button: The complete URL of the preferred PayPal-Button, on which your customers click to proceed to check out.
If you do not have any, just copy and paste this line:
https://www.paypal.com/images/x-click-but03.gif
URL of Your Logo: Complete URL of your company-logo, which will appear on the PayPal-Checkout-Pageto your customers..
Currency of your PayPal-Accounts: Enter the currency.