See: Save to Google Pay.
To activate this feature, define an Origin URL.
- Go to Settings » API.
- Click Edit next to Save to Google Pay.
- Enter the root URL where you want to place your Save to Google Pay button,
e.g., https://www.mysite.com.
Note The Origin URL is a list of domains to whitelist JSON Web Token (JWT) saving functionality. The Save to Google Pay button will not render if this field is not filled out properly.
- Click Save.
Edit or Delete Origin URL
- Go to Settings » API.
- Click Edit next to Save to Google Pay.
- Make your changes, then click Save.