Issue Configuring New Apple ID in Apple Business Manager - Verification Code

This error can occur if you have used a phone number for an Apple ID 10 times, even if those accounts are managed accounts that have been deactivated.

So I had the same issue - it was on a phone that was in ABM and already enrolled in our MDM, and was trying to sign into a newly created managed ID. When trying to sign into the new account it wouldn't send the verification code.

I wiped the device and had it go through the enrollment/activation process again and that fixed it. This is a first for me because we have reassigned phones like this in the past without having to wipe it.

Hope this helps somebody

We have run into the same problem, tried multiple cell phone numbers from different providers, even tried to request a phone call instead of text, but none of these worked, so it feels like an ABM service issue.

I just tried setting up my Managed ID through my MacBook's settings since the website wasn't working. Same error there as well. Has anyone had any luck today?

Thanks. That worked. We typically instruct users to reset the password and configure the second factor in a browser before enrolling a device into ABM, but based on your suggestion I just went ahead to do the enrollment on an iPad and it allowed me to verify the phone and change the password during the process.