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Guide

How to offer product samples with credit toward the full-size item in Wix Stores

Short answerLink each sample to its full-size product with Sample Credit. Buyers of a sample get a one-use, product-specific code worth the percentage you choose on a qualifying paid order.

Updated 2026-10-19

Why samples with credit

Samples lower the risk of a first purchase: flooring, fabric, paint, tea, cosmetics. But if the sample cost is simply lost, fewer people take the next step. Crediting the sample toward the full-size product turns it into a down payment.

Set it up

  1. Add Karelia Sample Credit from the Wix App Market. It works with Wix Stores.
  2. Link the sample product to the matching full-size product. A sample button appears on the product page.
  3. Choose the credit percentage, how many units a code covers and how long it is valid.
Connect a sample form with the physical sample, sample SKU, full product, credit percentage, units per order and coupon validity
Connect a sample to its full-size product

What the buyer gets

After a qualifying paid sample order, the buyer gets a one-use code that only works on the matching full-size product. The private dashboard shows source orders, credits and redemptions, and lets you retry credit processing.

After a cancelled or refunded sample order, the credit is put up for revocation review.

FAQ

Can the code be used on any product?

No. Each code is tied to the full-size product that matches the sample, and it can be used once.

Is it free?

Yes, Sample Credit is free on the Wix App Market.

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