A friend who I have been helping run his site has a wholesale site where they sell products in bulk to stores around the world. It was recently requested by a customer that he be able to login to his UPS shipping account through our site so that he can use his already negotiated rate with UPS to have his products shipped to him.
Unfortunately I have no idea how to do this or if its even possible. I can't seem to find an extension that is capable of doing this, all I find is extensions that calculate shipping rates.
He wants to be able to do this with UPS, FedEx, DHL and USPS but I personally do not think its possible. Its certainly not possible for me to code all by myself.
We currently have our shipping set up to be calculated by where the customer lives. So they enter their location in the shipping calculator and it gives them a flat domestic or international rate based off where they live/how many products are in their cart.
If anybody could let me know if its possible or what I would I have to do, I would really appreciate it.