Kindly follow the below-mentioned steps to change your Online Store Subdomain/web address:
- Click on your Account name in the top left-hand corner and select 'Settings' from the options.
- Make sure you are on the "Accounts" tab and in the "Subdomain" section, click "Change"
- Enter the new subdomain. If it is available, you will be prompted to enter your password. Enter your password and click "Save"