There are two basic ways of adding your business logo to your Shift4Shop store
Method 1
Using the Store Logo section:
Log into your Shift4Shop Online Store Manager.
Using the left navigation menu, go to Settings > General > Store Settings.
Look under the Store Information section, and you will see a field labeled "Store Logo" with a "Browse" link underneath it.
Click on the Browse link to open up your store's File Manager.
If you've already uploaded your logo image, browse it in the file manager and select it.
(Otherwise, click on the "+Upload Files" button at the top right to upload your logo for selection.)
After selecting your logo image, click on the Save button at the top right to set your change.
Invoice Logo
While adding your store logo in this section, look to the right side of the page for the "Invoice Logo" field.
This field can be used to specify a logo image for your store's invoices and confirmation emails. It can be the same logo as your store logo or a different file if necessary. (For sizing and/or color considerations)
Click here for more information on changing your Invoice logo
Method 2
Using the store's Global Header:
The second way to add a logo to your store is by using the store's Global Header.
Log into your Shift4Shop Online Store Manager.
Using the left navigation menu, go to Content > Header & Footer.
The Global Header section will allow you to add either raw HTML code or WYSIWYG formatting to add design elements to the top of every page. This functionality can be used to add a logo
Just be sure to enable the global header after you've made your changes by clicking the toggle switch found along the top left of it.
(On=Green, Off=White)