The god of wealth, the simple and common method is to put it on both sides of the gate, not facing the gate. Although wealth enters the gate, the god of wealth cannot face the gate. So the portrait of the god of wealth can be hung behind the cashier at the door.
The god of wealth is auspicious outside, and Maitreya Buddha is naturally worshipped inside. Dirty things should not be placed around the idol, so you should stay away from the toilet and find a clean and fresh place to hang in the store.