Swapping your Primary and Secondary Domains:
Go here:
https://developers.google.com/admin-sdk/directory/v1/reference/customers/updateYou ’ re in customer update now, click on Try It Now (it ’ s in blue).
Make sure you ’ re logged into your relevant Google account (you should see your mail address in the top right corner).
Next to customerKey type: my_customer
Next to fields type: customerDomain
Click next to ‘ Request Body ’, and in the – add a property – drop-down that appears, choose: customerDomain
The following will magically appear: “ customerDomain ”:
Type your secondary domain in the box next to “ customerDomain ”: (leave out the www. bit, just type in
yourdomainname.com)
Click Authorise and Execute
Your secondary domain is now your primary domain!
用这个方法 提示 403