Perhaps I misunderstand how authorize/capture functionally work, what I had seen was that discussion of that functionality/option was implied to not help in the process. A follow-on post discussed edit orders (a free add-on that would allow modifying the placed order (though used I've not used with a capture like setup), and then finalizing the order. So the process I was thinking for this situation (because seems to meet the business owners operational requirements) was:
- Customer places order with PayPal (or other payment processor) in a Capture mode, with consideration of shipping fees/ie largest expected payment.
- Store owner investigates information pertinent to sale.
- Store owner uses Edit Orders to modify a line of information to process a return to the customer.
- Store owner authorizes/finalizes the payment.
I came back to that post because it seemed like the capture usage was not being considered. I also stated functionally (not literally) because to get the exact actions described automatically completed WOULD require custom coding, but what seems to have been accepted by the OP is using a little elbow grease. Just want to make sure that the full process is/has been considered, and possibly captured in a single post for another small business owner that does not see that sales of the products would even possibly cover almost any development costs as the inventory is significantly limited as in no real replenishment and as such not expecting sales volume to be anything significant.