Wix Velo Technical Specification: Custom Payment Options & Cash on Delivery (COD) Handling fee via SPI

Project: gumikesztyu-shop.hu (Wix E-commerce platform) Objective: Split the single default Wix Manual/Offline Payment method into two separate, dedicated options on the Checkout page, and implement an automatic handling fee calculation for Cash on Delivery... (Budget: $30 - $250 USD, Jobs: Backend Development, eCommerce, Frontend Development, JavaScript, Payment Gateway Integration, Payment Processing, PHP, RESTful API, Website Design, Wix)