Install Addition & Carrier Shipping

To get started you'll need to install the app and then install the carrier shipping service. We step you through the process below.

How to install the Addition app

  1. Open your browser and visit:


  2. Enter your domain in the field provided and click Submit.
    This is the domain you visit to view your Shopify admin. For example:
  3. Authorize the app within the Shopify app install flow. This will allow the app to provide your store with Carrier Rates and set up the recurring charge to use the app.
  4. Once you have approved the app and it has been successfully added to your store, you will be taken to the Addition dashboard to complete the next steps.

Well done, you've now installed Addition to your Shopify Store. But, make sure to follow the next process as it is critical to completing the setup.

How to install the carrier shipping service

  1. Next, click Install Carrier. This will make Addition a 'shipping carrier' option in your Zones within Shopify.


Great, now you have installed Addition (Australia Post Shipping) as a 'shipping carrier' option.

This means your store can now connect to the app to quote Australia Post shipping rates when customers checkout in your store. Without this setup, your store will not be able to receive rates via the app, so make sure you complete both of the above processes.

Next, follow our guide You've installed Addition, what now? to find out how to get those Australia Post shipping rates setup in your store.