How do I add a new device for provisioning on the Apple Developer site when the button is disabled?

Question

My add device button in prov. portal is grayed out (disabled) like in the screenshot:

What am i doing wrong?

Answer 1

1. Click on "Get Started Button"
2. Check / uncheck devices that you want
3. Check box that says you acknowledge terms and conditions
4. Hit Submit
5. Add button will be available again

I just did all those steps.

Answer 2

Before doing something please note the following from Apple renewal policy:

Important Note: At the start of your membership year, make sure to remove all devices you no longer use for development prior to adding any new devices.

Refer to this link

Please, DO NOT add any new devices until you have removed all of the ones that you want to remove. Once you add a device, all of the existing devices will be re-registered.

What you need to do is simple: Get started, follow Sam's steps above. And start adding your new devices once your existing device list is renewed.