Using Australia Post Parcel Contact (formerly eParcel)

From Spiffy Stores Knowledge Base

There are a number of steps that you need to go through in order to connect your store to your Australia Post eParcel account.

Establish an eParcel account with Australia Post

You will need to contact Australia Post to establish an eParcel account, http://auspost.com.au/business-solutions/eparcel.html, if you don't already have one.