We require a Demandware (Salesforce Commerce Cloud) cartridge for a client of ours. The cartridge needs to display a button under certain products on their online store. On the checkout page, it should add a voucher code box. If a user enters a voucher code, a call should be made to our API and the monetary value of the voucher code retrieved. Then, the shopping cart balance needs to be updated.
I am willing to pay higher rates for the most experienced freelancers