How do I pair my new Logitech keyboard to my iPad Pro?

The iPad User Guide outlines the process of pairing Bluetooth accessories - such as a compatible keyboard, mouse or trackpad - with your iPad:

Set up and use Bluetooth accessories on iPad - Apple Support

You should also refer to the pairing procedure for specific third-party accessory - which will be found within its associated User Guide.

Should you experience difficulties, this support page should help with troubleshooting:

If you can't connect a Bluetooth accessory to your iPhone or iPad - Apple Support

Go to settings/ Bluetooth/ look for your keyboard and click connect.