imessage sign in button greyed out

If you are already signed in to your Apple ID on your iPhone or iPad , and when you go into messages and the sign in button is greyed out, If you tap and place the cursor after the last letter of your Apple ID and tap Return on your keyboard you should see “verifying…” and then your Apple ID should log in. This also works for FaceTime as well if you are having the same sign in button grayed out there as well.

If an app or feature on your device is not working or is restricted (grayed out), it may have been disabled using Screen Time, or by an IT administrator if you are using a device owned by an employer or educational institution.

- Read this document about using Screen Time on an iPhone, iPad, or iPod touch --> Use Screen Time on your iPhone, iPad, or iPod touch - Apple Support

Tap Settings > Screen Time > Content & Privacy > scroll to Allow Changes.

- If the device is managed (Settings > General > VPN & Device Management), contact the IT department that is doing the managing.

I have never used a VPN. Some have mentioned needing to uninstall it completely, not just disabling it.

If you can’t turn on or sign in to iMessage or FaceTime read this support article --> If you can’t turn on or sign in to iMessage or FaceTime - Apple Support

- Note the sections at the bottom about "Still not activated...?" and "Get more help."

Hi I can’t sign in the button is grey and I tried to re enter my email but it won’t let me verify

I confirm this works in iPadOS 17.5. But why it works, nobody knows. Absolutely bizarre.