Does a first purchase discount create full-price customers?

Last updated
October 14, 2026
Written by
Kat Ellison

The short answer

The first purchase discount effect shows up in what customers do next. Group new customers by the discount on their first order, then compare the share who later bought at full price and their 12-month margin. The best acquisition discount is the level that produces the most full-price buyers per dollar of discount.

Why it matters

Deep welcome offers fill the funnel with customers who wait for the next code. Knowing which discount level still produces full-price buyers lets you keep acquisition volume while spending less margin on customers who would never have paid full price.

The question to ask

Copy this into Lexi as written.

Which discount level acquires customers who go on to buy at full price?
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What the answer looks like

Illustrative output on sample data

Illustrative example: how Lexi answers this for a beauty retailer. It groups last year's new customers by first-order discount and tracks who later bought at full price.

  • No discount: 41% later bought at full price, $96 average 12-month margin
  • 10% off: 37%, $88
  • 20% off: 24%, $61
  • 30% off: 11%, $34

What the data shows

Moving from 10% to 20% off cuts later full-price buyers by about a third.

What it means

The 30% code ran mostly through coupon sites, which attract deal hunters whatever the depth. Within paid social alone, the 10% and 20% groups are closer, at 35% and 29%.

What to do

Cap the welcome offer at 10% and pull codes from coupon sites.

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Frequently asked questions

How do I compare discount levels for customer acquisition fairly?

Compare customers acquired at each discount level within the same channel and season, since codes often run in different places at different times. Track each group for at least 12 months, and measure margin and full-price repeat purchases, which show the long-term cost of the discount.

Does discounting hurt a brand's ability to sell at full price?

It can, when deep discounts become the reason customers arrive. Customers acquired on large codes learn to wait for the next one, and their full-price share stays low. Smaller, occasional discounts do less harm. Measure it in your own data by comparing full-price buying across first-order discount levels.

Should new customers ever get no discount?

Yes, in channels where customers already arrive with intent, such as searches for your brand name or referrals. Test a no-discount or non-price welcome there first. Customers who buy without a code often show the highest full-price follow-on, so a discount may only lower their margin.