The phone company setup up my phone before I could follow the setup backup procedures
Can I still transfer my data after setup
iPhone 14 Pro, iOS 16
Question marked as
Sorry no. To do that, you should start from scratch, using this procedure:--> What to do before you sell, give away, or trade in your iPhone or iPad
But, if it is a "company/work" device, talk to your company IT admin/supervisor, explain your problem and ask them for the permission to erase it.
Regards
Giulio