How can I customize a shopping cart prompt based on purchase quantity?

[onforuleds]

Dear Shopify Help Community,

How to customize the code to meet this requirement

“A text prompt appears on the shopping cart page when the number of purchases meets certain criteria.”

Text message “You can get a $10 gift card” when the customer purchases more than 20

Thanks for your help!

[devtalk]

@onforuleds

You can customized this things by the custom code,
You need a developer help, or you need to hire a developer,
Thank you.