אצלי זה עובד כבר כמה שנים ואני לא ממש זוכר איך עשיתי את זה אז אבל בטוח זה השתנה (העיצוב של האתר שלהם השתנה).מקווה שהמדריך יעבוד.
https://www.paypal.com/us/selfhelp/article/how-do-i-enable-2fa-(two-factor-authentication)-for-my-paypal-powered-by-braintree-user-faq3500
How to enable 2FA
2FA is not enabled on user accounts by default, and each user must enable it themselves. We encourage merchants to have all of their users enable 2FA for increased security.
Log in to the Control Panel with your existing credentials.
Navigate to Account.
Select My User.
Under Two-Factor Authentication section, click Enable.
Enter your current user password when prompted.
Scan the QR code using one of the supported apps on your mobile device, or click Use SMS as Primary.
Enter the code you receive on your mobile device to complete the process