I can’t active my iMessage and FaceTime
Before i had iPhone 13promax and MacBook and I hadn’t any problem with signing in to my iMessage and FaceTime but on my iPad Pro I can’t do that
iPad Pro, iPadOS 17
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 on your iPhone - Apple Support
Also try restarting your device. That cleared up an activation issue we had, and it doesn't hurt to try.
If it still isn't working after a day, contact Apple --> Contact - Official Apple Support