Enable SCA for your SumUp Card
Ensure your SumUp app is up to date and log in on the device you'll use to approve payments.
Select "Account" on the Home screen.
Tap the settings symbol in the top corner then choose "Account Security".
Enable Strong Customer Authentication by tapping on the toggle.
You'll receive an SMS with a unique verification code, enter the code into the "Phone Verification" section of the app and press "Confirm".
If, after enabling SCA, your transaction still fails, check for common causes of transaction failure. Alternatively, consider contacting the online shop owner or using a different payment method.
These security measures became mandatory for online payments as of March 2021.
Set up biometric confirmation and notifications
To make the SCA feature faster and more secure, you can enable authentication with your fingerprint or face ID to do this, tap on the “Touch ID” toggle button in your card security settings.