You have set up a campaign, curated your product pool, and launched. A customer opens their personalized catalog and sees a pair of running shoes at 30% off. Great — that is exactly the kind of deal that drives a purchase. But what if that customer adds 5 pairs to their cart, all at the discounted price? Suddenly your healthy margin evaporates, and you are essentially running a wholesale operation for one buyer.

This is the problem quantity limits solve.

How quantity limits work in Randio

By default, each customer gets the discounted price on one unit of each item in their personalized catalog. If they add a second unit of the same product, that extra one goes into the cart at full price. The limit is enforced automatically at checkout — there is nothing for you or the customer to manage.

Randio tip

You can change the per-item limit in your Randio settings. Most merchants leave it at one, but if you sell consumables or things people naturally buy in multiples — candles, skincare, coffee — allowing two or three discounted units can make sense.

Why this matters more than you think

Without quantity limits, personalized discounts have a blind spot. Consider this scenario:

  1. You run a campaign targeting 500 customers with an average 25% discount
  2. Your best-selling item (a $60 hoodie with 40% margin) appears in many catalogs
  3. A handful of customers recognize the deal and each buy 4-5 units
  4. Your margin on that hoodie drops from $24/unit to $9/unit — across multiple units

Even 10-20 customers doing this can meaningfully impact your campaign profitability. And the customers most likely to exploit unlimited quantities are often your most engaged, deal-savvy shoppers — exactly the audience that receives your campaigns.

Quantity limits protect the purpose of personalized discounts: to drive the initial purchase decision, not to subsidize stockpiling.

It is not stingy — it is smart merchandising

Some merchants worry that limiting quantities feels restrictive or cheapens the experience. In reality, the opposite is true. Here is why:

  • Scarcity enhances perceived value. A discount that applies to one unit feels more exclusive than one that applies to unlimited units. The customer treats it as a special offer rather than a clearance sale.
  • It mirrors how premium brands operate. Limited editions, one-per-customer policies, and exclusive drops all use the same psychology. Your customers understand and respect it.
  • The customer still gets a great deal. If someone's catalog has 6 items, they can buy all 6 at the discounted price — one of each. That is a generous offer by any standard.
  • Additional units contribute full margin. If a customer loves the hoodie enough to buy 3, the first is discounted and the other 2 are at full price. You have made a sale you might not have otherwise, and the follow-up units are pure profit.

When to increase the limit

The default of 1 is right for most stores, but there are legitimate reasons to go higher:

  • Consumables and replenishables. Coffee, supplements, skincare — customers naturally buy multiples. A limit of 2-3 feels natural and still caps exposure.
  • Gift-oriented products. If your store skews toward gifting (candles, accessories, small goods), customers may want to buy the same item for multiple people. A limit of 2 accommodates this without opening the floodgates.
  • High-margin items only. If everything in your Randio pool has 60%+ margins, a higher quantity limit is less risky because the math still works after discount.

For most apparel, home goods, and general merchandise stores, keep it at 1. You can always increase it later once you see how customers behave.

The bigger picture

Quantity limits are one piece of a broader margin protection strategy. Combine them with a curated product pool that blends high and low margin items, and you have a system where every possible catalog outcome is profitable.

The goal of personalized discounts is to create a compelling reason for the first purchase. Quantity limits ensure that compelling reason does not become an expensive loophole. Your customers get a genuine deal. You keep your margins intact. Everyone wins.

The best discount strategy is one where every possible outcome — any combination of products, any customer behavior — still results in a profitable order. Quantity limits make that possible.