In this article, learn about:
- Why September is the window to prepare for autumn range review conversations, not October
- What performance data UK buyers already have before the meeting starts
- What commercial and operational factors determine which suppliers hold their listings
- What brand-side data suppliers should bring to make the strongest possible case
Why September Is the Window
Autumn range reviews are not a single event. They are a process that begins in September, with buyer conversations opening across categories, and concludes in October and November when listing decisions are finalised for the year ahead.
By the time a supplier is sitting across from their buyer in October, the data has already been reviewed. Gaps in availability, fill rate, or despatch documentation from the summer period are visible in retailer systems before the meeting begins. The window to address those gaps, or to frame them with context, is September.
Suppliers who arrive at a range review meeting without a clear view of their own performance data, and without having prepared for the questions their buyer is already equipped to ask, are at a significant disadvantage. Those who have reviewed the data, identified the gaps, and prepared a clear account of what happened and what has changed are easier to retain.
What Buyers Already Know
Every major UK retailer runs a supplier performance platform. Before a range review meeting, a buyer can typically see:
| Metric | What it shows |
|---|---|
| On-shelf availability (OSA) | How consistently your product was in stock across the estate, by store and by week |
| Fill rate | The proportion of ordered volume you actually delivered |
| DESADV accuracy | Whether despatch documentation was sent on time, in full, and without errors |
| Rate of sale | How quickly your product moved at shelf, compared to the category average and to competitors |
| Promotional compliance | Whether committed promotional volumes were delivered during campaign windows |
UK grocery on-shelf availability averaged 89.7% in 2026, meaning roughly 1 in 10 products a shopper looks for is not on the shelf when they want it. For suppliers, avoidable stockout loss typically sits at 5 to 8% of addressable sales. Buyers know which suppliers are contributing to that gap and which are not.
Not addressing a known performance issue proactively in a range review is significantly worse than addressing it directly with a clear account of what happened and what has changed since.
What Buyers Are Weighing Up
Range reviews in 2026 are taking place in a tighter commercial environment than in previous years. Private label now accounts for 52% of UK grocery unit sales, meaning buyers have a growing own-brand alternative for most shelf positions. Every branded listing needs to earn its space against a category contribution argument.
The factors a buyer is typically weighing when deciding whether to retain, reduce, or delist a supplier are:
Category Contribution
Does your product bring incremental volume to the category, or does it cannibalise other lines? Buyers look at rate of sale, basket attachment, and whether your shopper base overlaps with other listed products. In a market where private label now accounts for more than half of unit sales, the case for keeping a branded line needs to be clear.
Margin Performance
Structural margin pressure across grocery retail means buyers need every listing to justify its commercial contribution. Suppliers who can demonstrate consistent margin delivery, including through promotional periods, are in a stronger position than those whose promotional ROI is unclear or undocumented.
Operational Reliability
Fill rate, on-shelf availability, and DESADV accuracy are not just logistics metrics. They translate directly into lost sales, write-offs, and distribution centre handling costs. A supplier with a consistent availability gap costs the retailer money beyond the lost units, and buyers can see exactly where that gap sits.
Commercial Engagement
In a market where input costs have been volatile, buyers value suppliers who engage with commercial conversations early rather than reactively. Range reviews are partly an assessment of the working relationship, not just the product performance data.
What Suppliers Should Bring
Buyers have the retailer-side data. The brand-side data they do not have is what makes the difference in a range review conversation.
Suppliers should arrive with a clear view of their own performance alongside context the buyer cannot see from their own systems.
- A clear account of any performance gaps. If fill rate or availability was below target during the summer, arrive with an explanation and evidence the cause has been resolved. A buyer hearing about a problem with no remediation plan reaches a different conclusion than one who hears it framed with a fix already in place.
- Forward-looking category data. Rate of sale data for the season just passed matters less than the category growth opportunity ahead. If market data, shopper research, or new product development supports a stronger range position next year, that is the case to make.
- Evidence of Golden Quarter readiness. October and November meetings are happening alongside the build into Black Friday and Christmas. Suppliers who can demonstrate tested EDI connections, confirmed lead times, and agreed fill rate commitments for peak are addressing a concern the buyer already has.
What This Means for Your Trading Relationships
The data that feeds a range review comes from the same systems that generate DESADV accuracy scores, fill rate reports, and on-shelf availability tracking throughout the year. Suppliers who monitor that data continuously are not surprised by what they see in a buyer meeting. Those who only look at it when a meeting is scheduled often are.
SPS Commerce gives suppliers the same view of their own trading performance that their buyers already have, updated in real time across every retail account. DESADV accuracy, fill rate, and availability exceptions surface as they happen rather than in a quarterly scorecard, which means suppliers managing multiple UK and Irish retail relationships can see the full picture in one place rather than piecing it together account by account before a meeting.
The range review conversation that goes well in October is built on the supply chain work done in August and September.
See how SPS Commerce helps suppliers monitor trading performance across UK and Irish retail accounts