Here’s a handful of tips on how to make sure the printed QR code is always visible to your customers:

• Once you’ve completed the setup, perform a test transaction. Adjust the timeout and the length of the short code if necessary.
• Place and keep the printed static QR code at the till, so it’s only visible to customers preparing to make a payment.
  

• Make sure the QR code can’t be scanned by the customers in the queue or elsewhere in the store.
• Make sure the static QR code is permanently attached to the till. It shouldn't be easily removable.
• Make sure the static QR code is always facing customers, so they can easily locate it, scan it, and pay with Klarna.

• Don’t place the static QR code near product stands that are far away from the till.
• Make sure the static QR code is examined daily to prevent any tampering or wear and tear.
• Don’t forget to cancel the payment session if it’s no longer needed. This helps avoid confusing the customers