Looking to add a message to customers when a discount code is used

Store Design
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Topic summary

Request to show a disclaimer tied to discount code usage in a Shopify store (Dawn theme). The desired message: “when this code is used, we have the rights to post your custom creation to our gallery.”

Key questions:

  • Best implementation method to display this disclaimer when a specific discount code is applied (cart page customization).
  • Whether a message can be automatically shown/sent immediately as the customer types the discount code (real-time trigger on the cart page).

Context: Store Design focus with cart-page, CSS, and customization considerations; theme is Dawn (Shopify’s default theme).

Status: Information-seeking only. No solutions or decisions yet; the thread remains open with unanswered implementation details.

Summarized with AI on January 19. AI used: gpt-5.
1

Hello,

I am looking to add a disclaimer message to my customers telling them that ‘when this code is used, we have the rights to post your custom creation to our gallery’.

What is the best way of going about this?

Is there anyway I can send a message to a customer as soon as they type in a discount code?

Also, I am using Dawn theme!

Thanks in advance!