How tough would it be code in a "search for ad" feature in the General section of the Admin CP that could search for ads based on the unique item number talked about
here, and also through the regular ad number?
I know PayPal informs customers of the unique number in their cart and by e-mail during the payment process, and if the other payment process deal with the same number, then this search ability could save site admins a lot of headaches when trying to find an ad. The ability to search for an ad by item number would come in handy whenever a customer had a problem with their ad, especially an ad that might be stuck in the approval que for whatever reason.