Thanks for your great question!
It is possible to change the name of the store. This can be done by going to Settings > Store details in your admin, however the change will not reflect in your store's URL.
It is not possible to change the Shopify username or the .myshopify.com URL as it is used for logging in, this is used as an identifier for your Shopify account. However, if you add a custom domain and make that your primary domain, the .myshopify URL will not be customer facing and visitors will only see your custom domain.
Also, check out this free course in Shopify Learn about the importance of buying a custom domain, you can check that out here!
Have you created a collection on your online store and experienced an issue with adding yo...By Ollie Aug 24, 2022