wallee is probably one of the best ways to process electronic payments. Due to standardized process they change the way you sell combined with features that offer you a bunch of additional value services.
Shopify is a commerce platform that allows anyone to easily sell online, at a retail location, and everywhere in between. It offers a professional online storefront, a payment solution to accept credit cards, and the Shopify POS application to power retail sales.
PieSync for Shopify takes less than 5 minutes to configure and helps you build out your Shopify store by minimizing the number of data errors thanks to its customer sync. New shoppers move directly into the right marketing segments (following GDPR) along with all of their contact data. When the contact data changes, in any system, PieSync keeps all the fields up to date.