Hey @Cam4 you might want to try SKUSavvy, assuming you are running your own fulfillment locations. It will connect with your Shopify store to pull in locations, products, inventory, customers, and orders then enable you to track inventory directly to bin locations. When orders come in they are routed to the closest warehouse with available inventory, and orders can be moved from one warehouse to another for fulfillment if needed.
You can try it out for free for 50 orders each month, or if you need customized functionality we will work with you to make it possible, or you can utilize the API to make these changes easily yourself.