After eight years closing seven-figure enterprise agreements at SAP and several more advising clients across Europe, APAC, and the Middle East, I've observed a consistent pattern in how commercial negotiations go wrong. It almost never happens at the table. The decisive failures occur weeks or months earlier, in the preparation phase — or more accurately, in the absence of one. The structural mistakes I see repeatedly are not complex. They are entirely preventable. But they require a discipline that most enterprise teams, under the pressure of deal timelines and internal politics, consistently fail to apply.

Mistake One: Treating Preparation as Information Gathering

When I ask enterprise teams what they've done to prepare for a significant negotiation, the answer is almost always some version of the same thing: they've reviewed the contract, they've benchmarked the pricing, they've talked to colleagues who worked with this counterpart before. This is information gathering. It is not preparation. Preparation in a commercial negotiation context means something specific: knowing, before the first conversation, what your walk-away is, what your ideal outcome is, and what you're prepared to trade between those two points. It means having mapped the counterpart's likely priorities — not their stated positions but their underlying interests — and having identified where your interests and theirs genuinely align, and where they don't. The Schranner methodology, which I applied across hundreds of enterprise engagements at SAP, is built on a precise distinction between positions and interests. Most teams negotiate positions: they open with a number, the counterpart responds with a different number, and they converge somewhere in between through a process that feels like negotiation but is actually just mutual attrition. Real negotiation happens at the level of interests — understanding what the counterpart actually needs the agreement to achieve, and structuring a deal that satisfies those needs in a way that also satisfies yours. You cannot do that work at the table. It requires dedicated preparation time that most enterprise teams don't take because they believe the deal cycle is the preparation cycle. It isn't.

Mistake Two: Underestimating the Buying Group

Enterprise deals are never bilateral. Even when there's a single named counterpart across the table, the decision-making structure behind them is almost always a committee — procurement, legal, finance, IT, the business sponsor, sometimes a board-level stakeholder who only appears at the final stage. I've watched deals that were progressing well go backwards because a stakeholder who had never appeared in a negotiation meeting exercised a veto at the point of contract signature. The team that thought they were negotiating with one organisation was actually negotiating with five different agendas that happened to occupy the same building. Understanding the buying group is not optional intelligence — it is foundational to any serious commercial strategy. In every engagement I've advised on, the first substantive piece of work is a stakeholder map: who has influence, who has authority, who has concerns that haven't been surfaced, and who is a champion that can be activated when resistance appears. This is the work that sales and procurement teams consistently deprioritise in favour of the commercial mechanics, because stakeholder mapping feels soft when there are numbers to argue about. The teams that do it well don't just win more deals — they win them on better terms, because they're designing proposals that satisfy multiple agendas simultaneously rather than optimising for one and hoping the others fall into line.

Mistake Three: Letting the Counterpart Set the Pace

One of the most reliable signals that a commercial negotiation is heading toward a poor outcome is when the counterpart is consistently setting the timeline. They define when proposals are due, when meetings happen, when decisions are needed. The team on the other side of the table is reacting rather than leading. Timeline control is leverage. When a counterpart owns the pace of a negotiation, they own the pressure — and pressure, consistently applied to one side of a commercial discussion, shapes the terms that result. The discipline of controlling timeline begins with something that sounds simple but is consistently underused: asking for what you need rather than accepting what you're given. This means requesting time extensions when you need them, setting your own internal decision dates that are not driven by counterpart-imposed deadlines, and reading deadline pressure critically rather than reflexively. When an institutional counterpart tells you that an offer expires Friday, the useful question is not whether you can respond by Friday — it's what changes for them if you don't. That question is almost never asked. The answer, most of the time, is that nothing fundamental changes for Friday. The deadline is a negotiating position, not a constraint. Recognising that distinction — and having the commercial confidence to act on it — is one of the practical separations between enterprise teams that negotiate well and those that don't.

Mistake Four: Confusing Relationship with Leverage

The most common version of this mistake plays out in renewal negotiations. A team has been working with a vendor for five years. The relationship is genuinely good — the account manager is trusted, problems get solved, people like each other. When renewal comes around, the team's instinct is to protect that relationship by avoiding anything that might feel adversarial. So they arrive at the renewal conversation without having built a competitive alternative, without having assembled their own data on the agreement's value, and without a clear walk-away position. They are, in commercial terms, defenceless — but they feel safe because the relationship is strong. What they have confused is operational trust with commercial leverage. These are different things. Operational trust is built through the day-to-day management of a partnership. Commercial leverage is built through the structural reality of what each party actually needs from the agreement, what alternatives exist, and what the cost of walking away looks like on both sides. A strong relationship does not substitute for that structural analysis — and in many cases, it actively gets in the way of it, because teams that value the relationship are reluctant to conduct the analysis that would reveal how much leverage they actually have. The productive frame is this: arriving at a renewal with clear commercial positions, a genuine walk-away, and a credible alternative is not adversarial. It is respectful. It signals that you are a serious commercial partner who has done the work — and that is, almost universally, how counterparts experience it when the negotiation is handled well.

The consistent thread across all four of these mistakes is preparation — specifically, the kind of structured, interest-based preparation that most enterprise teams deprioritise because it happens before the negotiation starts and therefore feels less urgent than the negotiation itself. The table is where positions are exchanged. The outcome is determined earlier, in the quality of the thinking that precedes those positions. Teams that understand this — that treat the pre-negotiation phase with the same rigour they apply to the negotiation itself — consistently outperform those that don't, on the same deals, with the same counterparts, in the same markets. It is not a talent question. It is a discipline question. And discipline, unlike talent, can be built.