1- Login to your MyPost Business account.
2- From the top-right of the screen click on your name and then click on Business details.
3- From the left sidebar menu click on Platform Partners.
4- Find WPRuby, and then click on the Connect button If you were asked, read and accept the terms and conditions and enter your credit card details.
5- After that, you will be able to see a token generated near WPRuby, click on the Copy Token button.
6- Go back to your WordPress dashboard, then go to WooCommerce -> Settings -> Shipping -> Australia Post Pro.
7- In the Account Type option, select MyPost.
8- Paste the token into the Merchant Token field and then click on the Verify button.
9- Click on Save the changes button.