These discounts act as an incentive for people who are unsure about making their first purchase. By limiting the offer, companies avoid giving the same large discount repeatedly to existing customers who may already be willing to buy. Tracking first-time coupon use also helps businesses measure how effective a promotion is at acquiring new users. In addition, exclusive welcome offers can encourage account creation and build a larger customer base. Over time, businesses hope that a positive first purchase experience will lead to repeat orders without requiring constant discounts.