Payment process from the customer viewpoint

Once the customer has placed products in the shopping basket, he can start PayPal Express. Buttons for this are available in the mini-shopping basket and in the shopping basket itself.
The customer is transferred to the PayPal Express page and must register there or create a new account.
After registration, the customer selects payment and delivery data and confirms these. Afterwards, he is brought back to the shop and finishes the order from there. Finally, the order confirmation is shown in the shop.