How to Refund SumUp Transactions on the POS
Integrate your credit card payments providers with AirPOS
If you are new to Zettle, or had previously used Zettle with your POS and have updated your POS app to version 3.8.18 or higher, you will be not signed in to your Zettle account and will be required to carry out these steps to get logged in
The iZettle Card Reader 2 now connects to your tablet via Low Energy Bluetooth and doesn't need to be paired with your tablet in the same way as before.
You can access these settings by tapping or clicking on the settings cogwheel and selecting 'Payments' from the left margin
If you should need to refund a sale that was made using iZettle this can be done entirely within the AirPOS application if you are refunding the entire transaction. The process is fully integrated with AirPOS.