The concept and logic

TL;DR

Use this addon to create Shipping Methods for Cargo that work with the Australia Post PAC API.

Your Cargo Products will need to have package dimensions and weight attributes added.

Australia Post's Postage Assessment Calculator (PAC) allows you to get a quote for any of their services, including both domestic (within Australia) and international (from Australia to overseas) options.

You will need to know your package dimensions and weight for Australia Post's calculator.

This addon attempts to bundle the Products in a customer's Cargo Order in to as few packages as possible while following the Australia Post package size and volume restrictions. Each package gets a quote from the Australia Post PAC, and is summed to give you a total cost for the shipping method.

If anything goes awry while getting a shipping cost, the Shipping Method will be hidden from the user. This can include:

• exceeding Australia Post's restrictions

• Australia Post not allowing that service code to the destination location

• general API connectivity errors (such as Australia Post being offline, invalid API key, etc)

• products unavailable for a specific shipping method