Copy an activation key
Copy the activation key from the Order Confirmation Mail. OR
Log into your account at www.appjetty.com using the email and password you have provided at checkout process.
Go to Downloadable Options and copy the activation key for the Australia Post Shipping extension.
Activate the extension
Log into Magento Admin Panel and go to STORES -> CONFIGURATION -> APPJETTY -> Australia Post Shipping Activation and enter the activation key in the ‘Activation Key’ field for the Australia Post extension then click the ‘Save Config’ button.
Select Websites
When you enter and save the key it will be verified and you can select the websites where you need to use the Australia Post extension. Click the ‘Save Config’ button after making your selections.
Now, Australia Post Shipping Extension got activated! You just have to set configurations.