As a buyer, you can shop as usual on the supplier's website by adding items to your basket. At checkout, you will be given the option to use BNPL alongside other payment methods, such as immediate card payment. By ordering your items in this way, you don't have to pay right away (you may be able to choose to pay in 30 or 60 days, or in three smaller payments, for example). Usually, in the B2B ecosystem, you would extend this credit yourself to your client and manage credit limits. With a BNPL payment option, the risk is assumed by the Payment Service Provider (PSP). You are paid immediately minus a commission and your client repays the PSP. It's a little bit like factoring in invoices.