Hiding the prominent 'coupon code' box behind a small link recovered ~5.4% of checkouts on a tested store.

Hiding the prominent 'coupon code' box behind a small link recovered ~5.4% of checkouts on a tested store.
An open code field tells buyers 'you're overpaying' and sends them off-site hunting for a code they never return from.
— Open field ▮▮▮▮ vs collapsed link ▮▮▮▮▮ on completed checkouts.
— Caveat: only safe if your traffic isn't coupon-dependent — discount-driven cohorts need the field visible.
Don't advertise a discount they don't have. Read the number, not the story. [n≈19k checkouts · 95%]