By default, the customer can only enter a voucher code in Shopware 5 when editing the shopping cart. Here is an example from Retronia online shop.

Shopware 5 voucher code in the checkout area?

In my view, this is quite uncomfortable. Because the customer usually goes straight to the checkout when he has put his item in the shopping cart. At least this has been shown several times in practice.

Therefore, in the backend in the Basic settings under order completion the option "Show voucher field in checkoutActivate that the customer can also enter a voucher code during the checkout process.

Shopware 5 voucher code in the checkout area?
Shopware 5 voucher code in the checkout area?

Which

https://forum.shopware.com/discussion/30506/gutschein-einloesen

images used on this site

Small flower shop spring sale coupon from @freepik