The customization I am looking for is to have Xcart upload all data required by FedEx Web Services so FedEx, not Xcart, can correctly rate, per my account specific rates, a shipment by FedEx Ship Manager and then return the results to the specific order in Xcart. I do not want Xcart to add the individual rates per box in a shipment. It will not be correct because it will not rate a shipment that qualifies for the FedEx Ground Multiweight program. FedEx Web Services can do this correctly.
A shipment is defined as the number of boxes in an order and the dimensions, weight & declared value of each of the boxes. These fields will have to be added to items and variants in x-cart.
Also required is the destination zip code & weather it is a residential or commercial delivery address. These fields will have to be added to customer profiles.
Origin & FedEx account number will come from the shipping module.
The following link to FedEx support may be helpful. [url removed, login to view]
Several of our items are over FedEx Ground's maximum size limit and can only be shipped on FedEx Freight so I will also need a module to rate shipments with them. Their requirements are in the attached .pdf file.
The problem I am having with these items is that if a customer orders an item which can be shipped with FedEx Ground and an item which can only be shipped with FedEx Freight both items will ship with FedEx Freight, not be split up and shipped separately. I am not sure how to handle this. A field will have to be added to items and variants setting these items as truck shipments only.