Ship what the store has, send the rest from elsewhere
When a customer buys in store and has the order shipped home, the store that made the sale can now ship the items it has, and only the rest go out from your other locations under your usual rules. Your customer gets their items sooner, and no stock has to be moved into the store first. To set it up, add a rule for store sales set to The store first, the rest from elsewhere, or ask Orca AI to build it for you.