App Promo Code

Shopify Partner
9 0 0

Hi all, are there any Shopify apis/frameworks available to offer promo codes for apps?

I want to offer different prices/trial period days to different customers. I understand that we will have to build this into our app to an extent, as ultimately our app creates the Charges that the merchant then approves. But I wondered if there is any system we can leverage to create/manage promo codes?

Thanks in advance!