Update: It seems that DSers always works in USD with Aliexpress, which means that if you don't pay at least the cheapest subscription, the prices won't be automatically updated on your Shopify store. There is a pricing rule (set your profit margin) + currency conversion tool (USD > AUD) in DSers that give you the final price based on the rules you define (on the free version, it appears just as a "reference price" after calculation, but you should set your selling price manually). However, if you pay any subscription, this "reference price" is pushed to your store (with the profit margin + currency conversion) every time the prices are checked for price changes or updates (from the supplier end). The only point of attention here is that the "cost" shown in your Shopify store for products will be in USD while the selling price is in AUD, so the profit calculated on the Shopify page is not real! Couldn't resolve this last part yet. - Shipping costs are included if you properly set your "princing rule".