In the box that asks for your domain, enter your website address.
Open a new tab in your browser and go to NameCheap.com and login to your account where you have your website registered at.
From the Dashboard of your NameCheap account, find the domain you wish to transfer to WA and click on the Manage button as shown here:
On the next screen, you will want to click on the Sharing/Transfer button:
On this page, you will want to scroll down to where it says, Domain Lock. Before getting your authorization code, you will need to unlock your domain. Click on the link so that it reads "off" next to the Domain Lock.
It should now read "off" and the red lettering should now read "Lock"
Click on the button to the far right to get your Authorization Code
Ray