We sell installed Windows software to churches and charities for tracking their donors and donations and issuing tax receipts, and also a program for accounting.
Many of our customer organizations use PayPal to accept donations, and some may also make payments through their PayPal accounts.
We want to be able to build an integration into our programs to read in the transactions from the customers' PayPal accounts into their programs, but I'm not quite sure where to start.
Do we have to be a member of the Partner Program?
What do our customers have to do to allow the programs they own to establish a connection to their PayPal accounts?
Which APIs do we use?
Thanks.
