A product is often missing: should you change store?

Three very different causes

1. The product is missing everywhere

A poor harvest, a plant at a standstill, a raw material that cannot be found, a line discontinued by the maker: in that case no store has it. The Retail Economics and DHL audit of 2026 puts UK on-shelf availability at 89.7%, and an out-of-stock item turns up in one grocery trip in five.

How to check: ask the aisle manager, who often knows, or look in another store. Changing store will solve nothing.

2. The product is missing in this store alone

This is the case that deserves your attention. The causes are internal: an ordering setting that is wrong, replenishment that comes too late, too little space on the shelf, or a wrong stock record that stops the reorder. These causes can be fixed, but only if the store knows it has the problem.

3. The product is missing at certain times

If you always find your product on a Tuesday morning and never on a Saturday at 6 pm, that is not a supply problem but a replenishment rhythm. Changing your hour is sometimes more effective than changing store.

What you observe	Likely cause	What works
Missing everywhere, for weeks	shortage at the maker	wait, ask for an equivalent
Missing here, present elsewhere	store organisation	report it, talk to the aisle manager
Missing only in the evening and at weekends	replenishment rhythm	come in the morning, ask about the back room
Shelf label gone	line dropped in this store	ask whether it is still listed

What is worth trying first

1. Talk to the aisle manager. They place the orders. A shopper who explains they never find a given product gives them information they do not have.
2. Report it, several times if needed. A single report is barely noticed; a product reported every week climbs the store’s list of most requested products.
3. Ask for one to be set aside. For a product you care about, this is often accepted and settles the matter immediately.
4. Try another store of the same chain. If the product is there, it really is a matter of local organisation, not of range.

When changing becomes reasonable

If, after reporting and asking, the same everyday product is still regularly missing after several weeks, the store has had the information and has not acted. That says something about how it is run, and going elsewhere is legitimate.

That is what most people do anyway: the worldwide study by Gruen, Corsten and Bharadwaj measures that, facing an out-of-stock, 31% of shoppers go and buy the product in another store. What stores usually do not know is that these shoppers do not complain: they leave in silence, and the store never finds out why.

Reporting costs you less than moving

Moving your shopping takes time, sometimes fuel, and the new store will have out-of-stocks of its own. Reporting takes two seconds and gives the store a chance to fix things. If nothing changes, you will at least have tried the option that costs you least.

How to report in two seconds

With ShelfAlert, there is nothing to install. Open shelfalert.io/signaler in your phone’s browser, or scan the ShelfAlert code if the store displays one.

1. Scan the barcode of an identical neighbouring product, or the shelf label.
2. If nothing scans, take a photo: the product is identified automatically.
3. Confirm. The store manager, if subscribed, receives your report in real time.

What if the store isn’t on ShelfAlert yet?

Tell its manager, or send them the page for store managers: the trial is free for 14 days, with no payment card.

Sources

• Gruen, Corsten, Bharadwaj, “Retail Out-of-Stocks: A Worldwide Examination”, GMA, 2002: full study (PDF).
• Retail Economics and DHL, The availability effect report 2026.
• Corsten, Gruen, “On Shelf Availability”, 2004: summary.