This is a setting example for displaying "Free shipping if you leave a certain amount left" in the header notification bar of Shopify's "Dawn" theme. You can set the threshold amount in the notification bar settings of the theme editor. Also, the product information in the cart is detected in real time and the displayed information is changed.
Example of settings to display "Free shipping with a certain amount left" in the header notification bar of the theme "Dawn"

[Setting method ①] Add the schema to "announcement-bar.liquid" and the label to "ja.schema.json"

[Setting method 2] Add code to "announcement-bar.liquid"

[Setting method 3] Rewrite the code to display the contents of the block in "announcement-bar.liquid" in two places

