Hi Guys,
My website allows people to "sign up" for day trips. They must then pay a price based on their selection. Does paypal allow you to send your own payment values (as calculated by the amount of daytrips and the price of each one)?
Is there a way to program this value?
Cheers, Dan
Take a look @ the Direct Payment API. I think it supports all your needs
https://www.paypal.com/cgi-bin/webscr?cmd=_dcc_hub-outside
Also, you can test your application in the PayPal Sandbox
How it works
For each payment, Direct Payment API takes the billing address, transaction amount, credit card information, and item information as inputs. Within seconds, the API returns a confirmation that the transaction has been processed.