I'm trying to connect Ubercart with Storm's invoicing module. When a new Storm invoice is created and the client is emailed a link to a PDF of it, they should also receive a link to an Ubercart product priced as per the invoice total if they wish to pay online.
Any idea how best to go about this? Is Ubercart even the right module for this type of task? I've been trying to wrap my head around this tutorial, but it leaves a bit to be desired. Much appreciated.
Update: I've also begun looking into alternatives, such as Simple Payments and Payments API. Both leave something to be desired (the former in terms of documentation, the latter in terms of PayPal support); I'm also at this point looking for ways to create a PayPal form and simply submit the price value from Storm as the total for the PayPal transaction.