Sell-in vs sell-through
The short answer
Sell-in is what a brand sells to retailers. Sell-through is what those retailers sell on to shoppers. A launch can sell in well and still fail to sell through.
| Sell-in | Sell-through | |
|---|---|---|
| Who buys | The retailer or distributor | The shopper |
| Where it shows up | The brand's own invoices | Retailer data, scanner data |
| What it tells you | Shelf space was won | People actually want it |
| Risk if it runs ahead | Stock piles up, then gets returned or discounted | Stockouts |
What is the difference between sell-in and sell-through?
Sell-in is a shipment, sell-through is a purchase. When a supermarket orders 10,000 cases for a launch, that is sell-in, and it shows up in the brand's revenue straight away. Whether shoppers buy those cases is sell-through, and that number arrives later and from someone else's till.
What is a sell-through rate?
Units sold to shoppers in a period divided by units the retailer received, as a percentage. A retailer looks at it to decide whether to reorder, keep the product on the shelf or cut it at the next range review.
Why the gap matters for a new brand
A first order is a bet by the buyer. The reorder is the verdict. Brands that get into a big chain and then go quiet are often brands with strong sell-in and weak sell-through, and the retailer's next range review is where it shows.
A signal that arrives before the sales data
Sell-through data comes from retailers on their schedule. Posts by shoppers who just bought the product come in daily. Monitor Mentions counts those posts for each tracked brand, which is an early, public read on whether a launch is being bought and talked about.
Sell-in vs Sell-through: questions people ask
Is sell-in revenue?
Yes, for the brand. It is recognised when the retailer buys the stock, which is why sell-in can flatter a quarter if shelves are being filled faster than shoppers empty them.
What is a good sell-through rate?
It depends on the category and the period. Fast-moving food and drink are judged weekly; seasonal goods over the season.