Hello, payment middleware is probably the most intimidating piece of the whole "online selling" puzzle when you're just getting started. And this is completely understandable. After all, that's part of the job - since you're launching a new online store - where you start working with your customers' financial information such as credit card numbers, sensitive personal details, etc. And as an ecommerce store owner, you're fully responsible Responsibility for ensuring the security of your customers' data first and foremost.