Summary
If you're already using automatic discounts. This is a neat little feature to ensure customers are aware of the discounts being applied to their cart. Take your automatic discount URL and append "?dt=Custom+text" to change the content that appears in the popup.
This will display a popup with your discount and the "Custom text" message.
How to
In Shopify find the discount you want to share
Click Promote > Get a shareable link > Copy link
Append the custom URL text.
For example if you want to add "Save 10% storewide" to your popup your shareable link might look like this
https://spacethemedemo1.myshopify.com/discount/SAVE10?dt=Save+10%25+storewideIf you're using the
?redirect=option in your discount URL you'll want to add the custom URL text like thishttps://spacethemedemo1.myshopify.com/discount/SAVE10?redirect=%2Fcollections%2Fwallets&dt=Save+10%25+storewide