Sending in my old iPad for trade in

This is the procedure you must perform:--> What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support

Regards

Giulio

After following the procedure provided, you’ll know it’s “done” by turning it back on …

… you should receive the initial “Setup your iPad” screen; just like when it was brand new.

You are most welcome

Giulio