@JBrennan The only way to prevent this is to use Apple DEP.
DEP might seem scary and a bit of a learning curve but talk to your supplier they should be able to put you in touch with someone that can help. Once you have it working it makes everything so much easier.
Are you a business or a school?
Meraki CMNO, Ruckus WISE, Sonicwall CSSA, Allied Telesis CASE & CAI