How to add discount code to subscription

Retired Boards Appdev Store Design
1

Hi there,

I would like to do a pre-launch offer by giving new subscribers the discount code WELCOME10 when they subscribe to the email form on the Password page of https://bubblebeautysupplies.com/

thanks for subscribing.PNG
thanks for subscribing.PNG1378×832 49.3 KB

Once the user input their email and submits it, how do I change this circled message?

Thank you !

2

Solved via https://community.shopify.com/post/2326509