Product fulfillment is hard but doesn't have to be a pain. There are plenty of very sophisticated 3PL warehouses that can do any type of fulfillment you need. At my last job I managed an e-commerce business and our process was so streamlined that we'd never actually touch our products. They were delivered from production directly to the 3PL fulfillment warehouses where the items were unpacked and stored. When the orders came in items were packed up, and shipped out, including international delivery. When items were sent out, we got the tracking numbers for the packages back so we could send customers e-mails (again all automated).

Some of the newer operations have staff on site that has electronics expertise and offer troubleshooting of arriving items, etc. It seems that having them flash NFC stickers shouldn't be soo bad to teach them (but maybe expensive).