What retail merchandising is
Retail merchandising is the retailer's decision set about what to carry, where it sits, what it costs the shopper, and what gets put on display. Four decisions, one budget, one shelf. The last cold-vault review I presented into ran on 120 facings across a 40-store convenience chain, with eleven suppliers each arguing their segment deserved more of them. That meeting is retail merchandising compressed into two hours.
The word gets used two ways, and the difference matters for what you are reading. From a supplier's side, merchandising is how a brand gets placed: winning a display, buying an end cap, funding a secondary location. That is product merchandising, and it is a persuasion problem. From the retailer's side, merchandising is an allocation problem. Space and working capital are fixed. Every facing given to one item is taken from another, and the only honest referee is the store's own scan data.
The six rights, and the two the data actually settles
Retail merchandising is taught almost everywhere as the six rights: the right product, in the right place, at the right time, in the right quantity, at the right price, in the right condition. It is a useful checklist and a terrible scorecard, because only two of the six resolve to a number on their own.
| Right | The decision | What settles it |
|---|---|---|
| Right product | Which items are carried | Velocity and share within the segment |
| Right place | Segment position and adjacency | Store layout, shopper flow, judgement |
| Right time | Seasonal and daypart timing | Weekly sales curve by store |
| Right quantity | Facings and days of supply | Rate of sale against days of supply |
| Right price | Shelf price and promoted price | Elasticity and competitive price checks |
| Right condition | Freshness, damage, presentation | Store execution, shrink, audits |
Right product and right quantity are the two that scan data settles outright, because both reduce to a rate. Everything else needs the data plus a judgement call. A merchandising report that scores all six on the same footing is laundering opinion through a spreadsheet.
A merchandising strategy is a space budget with a rationale
The phrase merchandising strategy usually arrives attached to adjectives. Written down properly it is three numbers per segment: how much space it gets, what rate of sale that space has to earn, and what happens if it does not.
The workhorse measure is the space-to-sales index. Take a segment's share of the facings in a set, take its share of the set's dollars, and divide the second by the first. An index of 100 means the segment earns exactly the space it occupies. Above 100 means it is starved. Below 100 means it is subsidised by its neighbours.
Worked example: 120 facings in a cold vault
Thirteen weeks of the chain's own inside-store POS, shared into that review. One cold beverage vault, one planogram across all 40 doors.
| Segment | Facings | Share of space | 13-week dollars | Share of sales | Space-to-sales index |
|---|---|---|---|---|---|
| Energy | 24 | 20.0% | $148,500 | 27.0% | 135 |
| Carbonated soft drinks | 42 | 35.0% | $170,500 | 31.0% | 89 |
| Water | 24 | 20.0% | $93,500 | 17.0% | 85 |
| Sports drinks | 18 | 15.0% | $71,500 | 13.0% | 87 |
| RTD coffee and tea | 12 | 10.0% | $66,000 | 12.0% | 120 |
| Total | 120 | 100.0% | $550,000 | 100.0% | 100 |
Energy holds 20% of the facings and earns 27% of the dollars, so it indexes at 135. Carbonated soft drinks hold 35% of the facings for 31% of the dollars and index at 89. Run one of them: 27.0 / 20.0 x 100 = 135, and 31.0 / 35.0 x 100 = 89 after rounding.
Now price the move. Energy is running $148,500 across 24 facings, which is $6,187.50 per facing over thirteen weeks. Carbonated soft drinks are running $170,500 across 42, or $4,059.52 per facing. Shifting six facings from soft drinks to energy adds roughly $37,125 and gives up roughly $24,357, a net $12,768 on a $550,000 set. About 2.3%, for a change that costs nothing but a reset.
Two honest caveats before anyone acts on that arithmetic. Facings do not scale linearly, so the seventh energy facing earns less than the first, and a large share of the real gain from added facings is not incremental demand at all but fewer mid-week out-of-stocks. A space-to-sales index tells you which direction to move and roughly how far. It does not tell you the answer to three decimal places, and a merchandising report that presents it as though it does will get argued out of the room the first time a segment underdelivers.
The other trap is reading the index in one period. Energy at 135 for one quarter is a seasonal artefact as often as it is a signal. Read it over four quarters before you cut a segment, and pair it with SKU rationalization inside each segment, since a segment indexing at 89 usually contains three items indexing at 140 and nine indexing at 40.
Food and beverage merchandising has a clock on it
Merchandising food is the same decision set with a shorter fuse. A packaged grocery item that is over-faced loses you shelf productivity. A prepared sandwich that is over-faced loses you the cost of the sandwich, every day, until the facing count comes down.
That changes which number leads. In shelf-stable sets, the space-to-sales index is the first read. In fresh and foodservice, days of supply is the first read and space-to-sales is the second, because the binding constraint is waste, not productivity. Beverage merchandising sits between the two: shelf-stable economics, but a cold vault has a hard capacity limit, so every decision is zero-sum in a way that a dry aisle is not.
Where Scout fits
Scout ingests the retailer's own POS and computes the reads above by store, by segment and by item: rate of sale, space-to-sales, days of supply, and the out-of-stock pattern that usually explains a soft segment better than its facing count does. It models the assortment and space decision. It does not publish a planogram, and it is not a space-planning system: the resulting set still gets drawn and transmitted by whatever tool your stores already use. If you want the space-allocation method in more depth, the shelf space optimization walkthrough covers it.
The short version
- Retail merchandising is the retailer's four-part decision on what to carry, where it sits, what it costs and what goes on display, and it is an allocation problem rather than a persuasion problem.
- Of the six rights, scan data settles right product and right quantity outright. The other four need data plus judgement, and a scorecard that weights them equally is opinion in a spreadsheet.
- Space-to-sales index is the workhorse: segment share of dollars divided by segment share of facings. Energy at 135 on 20% of a cold vault was worth about $12,768 a quarter to rebalance.
- Facings do not scale linearly, and much of the gain from added space is avoided out-of-stocks rather than new demand. Read the index over four quarters before cutting anything.
- In fresh and foodservice, days of supply leads and space-to-sales follows, because the binding constraint is waste.