[nyef]

In Paypal, under History ~ Download History, you can download your paypal transactions to many different file types, including Quicken (.qif), Quickbooks (.iif), comma-delimited, etc.

Alternatively you could use the Instant Payment Notification feature of Paypal to have them send your web app your transaction information, and your web app could possibly... I dunno do something with it to get it into quickbooks. A lot harder to set up but could possibly be totally automated, whereas downloading your history to a quickbooks import file would have to be done manually and periodically.

[portman]

We already have all of the IPN data in a database. Unfortunately, it looks like using the QuickBooks API might be the best way to go.

I'm still shocked that this functionality isn't included out of the box.