Question
There will be 100 SKUs and 200 shipments daily via USPS First Class mail. All shipments are under 3 lbs; 80% of shipments are under 1 lb.
I'm curious about which software we should use to generate labels based on orders placed from a Shopify store and which software we should use to track inventory as orders are fulfilled, provide tracking information to customers, etc.
Answer
Shipstation is best. It can also extend outside of Shopify to other marketplaces. With that many orders under a pound you may also want to consider DHL eC. They can often beat First Class Mail rates for very small packages.