A great FMCG key account manager grows the customer's category and your share of it; an average one administers the account. This article sets out the five habits that mark out the best KAMs and national account managers, a scorecard you can use to assess them, and an interview process that tests for those habits rather than for confidence.
Why the KAM hire matters so much
UK grocery is concentrated. Worldpanel by Numerator's data for the 12 weeks to 17 May 2026 put Tesco at 28.2% of the market, Sainsbury's at 15.2%, Asda at 11.5%, Aldi at 10.8% and Lidl at 8.6%. For many suppliers, one or two of those customers make up a large share of turnover, so the person who manages them carries a disproportionate share of the P&L. The US looks different in detail but the principle holds: one large retail account can define a CPG company's year.
That is why a weak KAM hire is expensive. It is rarely visible in the first quarter; it shows up in the next range review, a lost promotional slot, or trade spend that grew without volume to show for it.
1. They know the category better than the buyer
The best KAMs walk into a meeting with insight the buyer does not have: why shoppers are switching, which pack formats are growing, where the category is losing money for the retailer. They use data to tell a story about category growth, not just to report their own brand's numbers. Buyers make time for that person, and that access is commercial advantage.
2. They run the business internally
A joint business plan is only as good as the supply, marketing and finance support behind it. Great account managers pull those teams into the plan early, win the argument for investment and protect service levels on their account. Ask any candidate for an example of a time they changed an internal decision for their customer, and listen for names, numbers and trade-offs.
3. They treat trade spend as an investment
Trade investment is one of the largest costs in an FMCG P&L. McKinsey's work on revenue growth management names pricing, promotions, assortment and trade investment as the core levers, and argues that many companies have leaned too heavily on headline price. Strong KAMs know the return on every promotion they run and will stop one that does not pay back, even when the buyer wants it.
4. They negotiate within the rules
In the UK, relationships between the largest grocers and their direct suppliers are regulated through the Groceries Supply Code of Practice, which the Groceries Code Adjudicator monitors and enforces. A capable KAM knows the code, keeps a record of agreements and knows when to escalate. That protects the business and makes for better long-term relationships with buyers.
5. They plan two years out
Average account managers live in the current promotional cycle. Great ones are already working on next year's range review and the innovation pipeline, and they bring category and shopper insight into those conversations early. That is how a supplier earns distribution for new products rather than fighting for it.
A KAM hiring scorecard
| Competency | What good looks like | How to test it |
|---|---|---|
| Category insight | Explains category drivers and shopper behaviour, not just own-brand sales | Give them a short data pack and ask for three growth opportunities |
| Joint business planning | Has built a JBP, can describe targets, investment and outcome | Ask them to walk through one JBP and what they would change |
| Trade investment | Knows promotional ROI and has stopped a promotion that did not pay back | Ask for a promotion they ran: cost, uplift, payback |
| Negotiation | Prepares, trades rather than concedes, knows walk-away points | Role-play a cost price increase conversation |
| Internal influence | Has moved supply, marketing or finance behind a customer plan | Ask for a decision they changed and who they had to convince |
| Customer experience | Relevant channel and account experience (multiples, discounters, convenience, wholesale) | Check accounts, years and turnover managed; take references |
A hiring process that tests the right things:
- Brief properly. Agree the customers, turnover, targets and must-have experience before you advertise or brief a recruiter.
- Screen for evidence. A short call to confirm account experience and the numbers behind it.
- First interview. Competency-based, built from the scorecard, with the hiring manager and one peer.
- Task. A data pack or JBP exercise, sent in advance, presented at second stage.
- Final stage. Meet the commercial director, discuss package and start date openly.
- Move quickly. Give feedback within days, not weeks. Good KAMs usually have more than one option.
KAM, NAM or controller?
Titles vary between businesses. In the UK, a key account manager usually owns one or more named accounts; a national account manager (NAM) typically handles a larger national customer and may lead a small team; a controller or head of account runs a group of accounts or a whole channel. In the US, NAM is the more common title and customer teams are often based near retailer headquarters. Pay follows scope: our UK FMCG salary guide shows Indeed UK's average key account manager base at £46,018, with a range from £29,506 to £71,772.
Hiring a key account manager: common questions
A KAM manages a supplier's relationship with major customers such as grocers, wholesalers or foodservice operators. They agree the joint business plan, negotiate terms and promotions, and deliver volume, value and profit targets for those accounts.
Both manage customers. A NAM usually handles a larger national account and may lead a team, while a KAM may manage one or several smaller accounts. Titles differ between companies, so compare scope rather than titles.
Category insight they don't already have, reliable delivery on promises, sensible promotional plans and a supplier who makes the buyer's category grow. Buyers make time for KAMs who help them hit their own targets.
It helps but is not essential. Experience of the same channel, such as discounters or convenience, often transfers well. Weigh evidence of growth delivered over the logo on the CV.
Indeed UK reports an average base of £46,018, with a typical range of £29,506 to £71,772 (September 2026). Bonus and car allowance are usually added on top.
If you are hiring, our FMCG sales and key account recruitment team can map the market for your accounts. Hiring across both markets? See how we recruit in the UK and US.