Make sure your iPad supports Apple Pencil Pro
Turn on Bluetooth on your iPad
Attach Apple Pencil Pro to the magnetic connector on the side of the iPad
Keep it attached until the pairing prompt appears
Tap Connect
If prompted, follow any on-screen instructions
If it does not pair, restart the iPad and try again
Make sure the iPad is updated to the latest iPadOS
Remove any case that may block the magnetic connection
Reattach the Apple Pencil Pro and try pairing again