How to make a chest shop on is?

[DacomputerBoss]

I need help making a chest shop where i buy mob head how do i setup the sign?

 

[zNotqx]

It's simple! Just place a chest, then a sign on the chest itself, and type [shop] on the sign, make sure that the sign is placed on the front side of the chest, and not on the ground., then right click the sign to enter the shop UI, where you can setup the selling/buying price, the items, and more