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To learn more, click the link on the enrollment page on two-factor authentication.
4. Your Apple ID
Two-Factor authentication option turned on. truMobile - Apple Account 2 TWO- factor Authentication
If you don’t have it on or not sure whether or not it is on, please refer to the title below on How to turn on the two-factor authentication for your Apple ID.
If you are instead using Two-Step verification, you need to switch over. Apple Developer Program requires Two-Factor authentication for the Developer Account Program. You have to turn off the Two-Step verification first, and then turn on the Two-Factor authentication next. To turn off Two-Step verification, please refer to the title below on How to turn off Two-Step verification.
Note that the two-factor authentication is different from Two-Step verification. Two-factor authentication requires not only your password but access to either a trusted device or verification code delivered via SMS or phone call.
To learn more, click the link on the enrollment page on two-factor authentication
5. On the Apple Developer Program enrollment page, scroll to the bottom and click
Start Your enrollment
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6. Sign in with your Apple ID
7. Apple should send a verification code to your device
8. Enter the verification code
9. Go over the Apple Developer Agreement,
check the box confirming that you have read it and click on Submit
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