The two titles often appear in the same conversation, sometimes in the same job description. Yet these are two different jobs, with different skills, different indicators and personality profiles that have little in common. Confusing them at the brief stage produces a hire that disappoints everyone : the company does not get what it expected, and the employee ends up doing a job they did not choose. Before launching a Key Account Manager recruitment, the first question to settle is this : are you looking for someone who opens, or someone who develops?
In short
- The Business Developer opens a market : they create demand where none exists yet. The Key Account Manager develops an existing relationship with a strategic client.
- The two roles are not measured with the same indicators : new logos and opening pace on one side, share of wallet and account margin on the other.
- The personality profile differs : tolerance of rejection and speed on one side, political patience and organisational reading on the other.
- In Belgium, market size pushes companies to merge both roles into a single job description : workable, but only if the time split is stated explicitly.
- The right call comes from the sales cycle and market maturity, not from the title the role carries on the org chart.
Two mandates, two logics
The Business Developer works on what does not exist yet. An uncovered segment, a country where the company has no reference, a new offer nobody has yet proved sells. Their day mixes prospecting, qualification, message testing and feeding information back to marketing and product. They accept a high failure rate because that is the nature of opening work.
The Key Account Manager works on what exists but is under-exploited. A client buying one product line out of five. A subsidiary that could roll an agreement out at group level. A framework contract coming up for renewal that three competitors are eyeing. Their day mixes decision-maker mapping, account planning, internal coordination and multi-year negotiation. Their failure rate is low, but each failure is expensive.
That difference in nature shows up in one simple figure : the number of contacts per deal. A business developer often speaks to one or two people to land a first order. A key account manager deals with six to twelve stakeholders spread across procurement, the business line, IT, legal, finance and general management, each with their own decision criterion.
| Business Developer | Key Account Manager | |
|---|---|---|
| Mission | Create demand, open a market or segment | Develop and secure existing strategic accounts |
| Horizon | Quarter to half-year | Twelve to twenty-four months, sometimes more |
| Indicators | Qualified meetings, new logos, conversion rate | Share of wallet, account margin, renewal, account plan |
| Stakeholders | One to three decision-makers | Six to twelve stakeholders |
| Dominant skill | Generating interest, resilience, speed | Political reading, coordination, long negotiation |
| Variable pay | Frequent, indexed on acquisition | Annualised, indexed on margin and progression |
Hunter and farmer : a useful image, but incomplete
The hunter-and-farmer metaphor has been circulating in sales organisations for thirty years. It has the merit of clarity, but it creates a misjudgement : it suggests the account manager is a passive salesperson, busy maintaining what exists. That is wrong, and on exposed portfolios it is the opposite.
A key account manager who merely manages loses ground every year, because competitors are hunting that account. The difference is therefore not between offence and defence, but between two forms of conquest : winning a new client, or winning a larger share at a client you already have. The second is often harder, because the ground is occupied and the incumbent contact has no wish to see the perimeter change.
The expert’s view
We’ve been using the KOAN tool for 30 years. Thirty years isn’t a detail : it’s what lets you read a test beyond ticked boxes. A KOAN properly interpreted doesn’t just say “this candidate is extroverted”. It tells you what drives them, what blocks them, how they react under pressure, and whether those dynamics fit your team’s culture. That’s rare, and it’s what turns a psychometric test into a business decision tool.
The Belgian case : the hybrid role, out of necessity
In a market the size of Belgium, many companies cannot afford two separate roles. A Walloon industrial SME or a Flemish subsidiary of a foreign group will often give opening and management to the same person. That is not a design flaw : it is a volume constraint. The problem appears when that reality goes unsaid.
A candidate hired on a promise of strategic development who spends 60 % of their time cold prospecting will leave. A candidate hired to open a market and confined to three legacy accounts gets bored and leaves too. In both cases the company concludes that “the market is difficult”, when the problem lies in the job description.
The fix is easy to state : quantify the time split in the brief and say it to the candidate exactly as it is. “70 % development on eight existing accounts, 30 % opening a new segment” is a sentence everybody understands. “A versatile profile, both hunter and farmer” is not. Belgian recruitment practices are, incidentally, governed by Federgon, the federation of HR service providers, whose label has validated our process.
How to know which one to hire
Four questions are enough to decide, and they are about your market, not your org chart.
- Where will the next three years of growth come from? From clients you do not have yet, or from a larger share at those you already serve? The answer determines which job to hire.
- How long is it from first contact to signature? Under three months, the mandate leans towards market development. Beyond nine months, it leans towards account management.
- Who decides at your client? A single contact points to an opening profile. A cross-functional committee requires the skill of navigating organisations.
- What happens if you lose your third-largest client? If the answer makes the finance director go pale, your priority is not opening, it is securing.
That last question points to something many companies underestimate : portfolio concentration. We look at it from a financial angle in our article on the role of key account management in your margin.
Assessing the right profile, not the right CV
Both roles attract candidates whose CVs look alike : same education, same sectors, often the same companies. The difference lies in personality dynamics the CV does not show. An excellent opener tolerates rejection, moves fast, and gets bored in long processes. An excellent account manager tolerates waiting, reads power relationships, and accepts not being the one who signs in order to be the one who built the decision.
That is exactly what we set out to objectify in assessment : an in-depth interview, role-plays on real company cases, and a personality test. A candidate who shines in an opening role can be a poor choice on a strategic portfolio, and the reverse holds just as strongly. The skills required to hold a long cycle are covered in a dedicated article : what skills it takes to manage long, complex sales cycles.
Making both roles coexist in one team
When a company is large enough to separate the roles, a design question arises straight away : at what point does an account opened by the business developer move into management? Without a written rule, that boundary becomes the main source of conflict in a sales team. The opener feels their best deals are being taken away ; the account manager feels they are inheriting badly framed files.
Three elements defuse the issue. An objective handover threshold, expressed in annualised revenue, number of client divisions or contract length. An overlap period during which both share the account and, where relevant, the variable pay. And a documented handover ritual : history of exchanges, stakeholder map, commitments made. That last point looks administrative ; it is what determines whether the client experiences continuity or a break.
Supervision falls to sales management, and that is a recruitment subject in its own right. A mixed opening/management team requires finer steering than a homogeneous one, with two sets of indicators and two review rhythms. It is one of the points we examine when a company hires a sales manager or a Head of Sales : can they manage sales populations whose jobs are not alike?
Moving from one role to the other
Many companies promote their best opener onto a key account portfolio, thinking they are rewarding performance. The transition works about half the time, and failure has nothing to do with motivation. A salesperson used to measuring their week in meetings booked finds themselves in a job where three months can pass without a visible event. The sense of uselessness arrives quickly.
The reverse exists too, and is rarer : a seasoned account manager placed in pure opening suffers from the volume of rejection and the absence of relational depth. In both directions, the question is not “are they capable?” but “will they find there what makes them work?”. That is precisely what a structured assessment lets you anticipate before moving someone inside your organisation.
Two roles, two pay philosophies
The distinction shows up very concretely in the compensation plan, and getting it wrong undoes the whole design. An opener can live with a high variable share paid frequently, because deals close often enough for the mechanism to feel real. An account manager on an eighteen-month cycle cannot : the same plan would leave them with two quarters at zero while their work progresses normally.
There is a second, subtler difference. Opening work is individual and attributable : you can name the person who booked the meeting. Account development is collective : pre-sales, delivery and sometimes general management all touch the outcome. A plan that pretends otherwise creates disputes at year end, and the account manager learns to protect their claim rather than to build the account. We set out the mechanisms available in Belgium, including the collective bonus regime, in our article on variable pay for a Key Account Manager.
One practical consequence for hybrid roles : if the same person does both jobs, the plan needs two components, not an average. Averaging produces a scheme that rewards neither behaviour properly, and candidates read it immediately for what it is – a company that has not decided what it wants.
What about the neighbouring job titles?
The Belgian commercial landscape uses a dozen overlapping labels. Three are worth clarifying. Key Account Manager and the French “Commercial Grands Comptes” describe the same role ; the English term dominates in international groups and in Flanders, the French one in Walloon and Brussels companies. The Sales Development Representative focuses solely on upstream qualification, supporting a senior salesperson. The Account Executive, in software vendor vocabulary, mixes opening and closing on a short to medium cycle.
One more consideration belongs in the decision, and it is organisational rather than commercial. An opening role generates information the rest of the company needs : which arguments land, which segments respond, which competitor keeps appearing. If nobody collects that information, the business developer becomes an expensive lead generator. An account management role generates a different kind of intelligence – how a large client is evolving, what its purchasing organisation is planning – and it too is lost if there is no forum to share it. Deciding who the information goes to is part of designing the role.
The operational lesson is constant : the title says nothing about the mandate. Two companies in the same sector, in Antwerp and in Liège, can use the same label for two jobs with little in common. That is why our briefs start with a description of the actual work – accounts, cycle, stakeholders, share of revenue carried – before discussing the title that will appear on the contract.
Pay follows the same rule : it depends on the mandate, not the label. That is what we detail in our analysis of the salary of a senior Key Account Manager in Belgium, where the composition of the package often weighs more than the job title.
