If you don't see an embed in your theme, that means you installed USO prior to November 29, 2023 and changes like this need to be made directly in your theme's code. Once you publish a new theme, you'll need to enable your USO app embed in order for the app to work. Contact our our support team for assistance with making these changes in your theme's code.
Text in popups and notifications can adjusted in the USO: Discounts and Promotions app embed settings in your theme editor. App embeds can be found in your theme editor on the left-hand sidebar underneath your theme settings.
Changes like custom text or translations can be directly made inside of the Customize template field. If you're not comfortable making changes like this, contact our support team.