My store has fixed/flat rates, do I need this app?

Addition is designed to display Australia Post shipping rates and automate the fulfilment of your orders.

With our Rates feature, Australia Post rates are based on cubic weight (dimensions) and dead weight (mass/kilograms). Therefore, if your Shopify store only requires fixed/flat shipping rates you can set these rules up directly through Shopify Shipping rules. You do not need our app for a fixed/flat shipping strategy. 

That said, if you are using fixed/flat rates via Shopify but still need to automate the fulfilment of your orders which are sent out by Australia Post, you can still use our app.