Enter your shop name as you want it to appear, so Blogger's messages use your brand.
The Shop Name card in Settings has one field, Shop Name. Enter your store's name exactly as you want it to appear.
Where it is used
Blogger uses your shop name in the email notifications it sends you about new posts, so messages clearly show which store they are about. This is useful if you run several Shopify stores with Blogger.
Author names
The shop name is not used as the article author. Set the author for each post in the Author field of Quick Post or New Agent. In Quick Post, an empty author uses your shop domain; in New Agent, the author defaults to Admin.