...
Step 2: Enable Two-factor Authentication
Sign in Merchant Account, go to “Profile” > “Two-factor Authentication”.
Set "2FA enabled" on; then you will be redirected to setup page with QR code.Open Merchant Account
Scan the displayed QR code with OTP app or enter the key and create in-app account.
Enter a one-time password, provided by OTP app, in the field below the QR code.
Save the provided recovery code in a safe place - it may be used if you lose your device.
...