Just don't.
Just don't.
Was told they could accept my companies inventory for Black Friday and Cyber Monday sales. They told me they only needed 1.5 weeks to inventory everything. It has not been 7 weeks and still have not had all of our inventory put into their system. Orders placed on 11/28 did not get shipped until 12/19. We ended up having to remake the inventory and ship the majority of orders ourselves, which of course made us double our initial inventory investment in sale, basically eliminating most of the profit from the biggest sale of the year. All I get is excuses and them blaming us. Cannot get our issue escalated past our customer service rep and they told us they didn't want to put extra manpower into our account so their other customers didn't suffer.
Don't use Easypost.

