This article applies to Website Builder packages.
This article will explain how you can change your Google checkout merchant ID used on the Google Checkout widgets.
Scroll down to the Create your website section and click on the Website Builder icon.
Click on the Login button next to the relevant package.
Click on the Manage tab at the top of the page.
Click on the Ecommerce button at the top of the pane.
Here you can edit your Merchant ID and the currency you wish to use.
Click on the Save Google Checkout Settings button.
Your changed merchant ID will now be saved.