To give Xbox one S in payment?

I would like to start my Xbox one s at Gamstop in payment, and would like to know if I should reset there before or delete everything or something?

I would always reset everything to factory settings as soon as the console gets a new owner.

Erase everything, it is safer.

Naturally! Or do you want the next owner to access your data?

Where the Gamestop most likely put the console back anyway.

K thanks and is it even if I just do it all in a bag or does it have to be in the box?

Do you have to see what they want, maybe it's the purchase conditions.