Switching from boost mobile

I plan on getting the savehalf visable + pro plan within the next week and I've got a locked Moto stylus 2024 on boost that has been paid off and longer than 1 year of service. I plan on keeping the same phone number. I talked to boost and they gave me a unlock code? To tell to my new carrier when I switch over. I looked into all the visable chat options and it's not really saying anything about It. Could you help me?