It doesn't make logistics easier, but it makes it worth investing resources into. Economies of scale means you get more value for the resources you do invest in

It doesn't make logistics easier, but it makes it worth investing resources into. Economies of scale means you get more value for the resources you do invest into logistics. Anecdotally, almost all small online businesses I've seen the back end of do not have a dedicated logistics person. When there's only a handful of different kinds of stuff to ship, shipping becomes an extra low-skill task usually given to whoever is free. They also usually do not have a sophisticated inventory management system (because it is not worth it to purchase one), and instead use spreadsheets that are manually managed. Secondly, sending out stuff same-day is not even close to same-day _delivery_. For that you need to control all aspects of the logistics chain, which only makes sense at Amazon scales. I've encountered many times where I've ordered things, had a label created the same day but then with no progress for a week. After contacting the seller, it turned out the courier only picks up packages from their warehouse once every 3 days, and then takes another couple of days to "ingest" it and do the origin scan.