Avoiding ERP Mistakes: Minimising ERP Selection Risk

How mid-sized companies secure the most expensive IT decision of a decade — with independent decision assurance from system selection to benefit control after go-live.

Avoiding an ERP mis-purchase takes more than a functional and vendor comparison: it takes an independent party that documents the decision, secures it contractually, and makes its outcome verifiable. We call this methodology ERP decision assurance — it is part of our DAA (Decision Architecture Assessment) approach and is described in full in this article.

Why ERP mistakes happen — and why traditional selection consulting doesn't prevent them

Across more than three decades and over 1,200 projects in the DACH SME sector, we have seen a recurring pattern: ERP projects rarely fail because of the software. They fail because of four sources of risk that exist before, during and after selection — unclear decision criteria, contracts without exit options, uncontrolled change requests, and the failure to check whether the business case actually materialised after go-live.

Traditional selection consulting addresses only the first of these — and only up to the point of a recommendation. At the same time its core service is under pressure: market overviews and functional comparisons are now delivered faster and more cheaply by platforms and AI tools. Anyone who genuinely wants to avoid poor decisions has to look for value where no tool can provide it: in sound management decisions, independent risk and implementation assessment, and proven results.

A well-founded ERP decision instead of gut feeling: the distinction

Distinction from classic ERP selection consulting

Selection consulting answers the question, "Which system fits?" Risk minimisation — in the sense of decision assurance — answers three further questions: "Can we justify this decision at any time?", "What happens if the project fails?", and "Did the promised benefit materialise?" Selection is therefore one component of risk minimisation — not the other way round.

Distinction from implementation partners and system houses

Implementation partners often offer "free" advice during the selection phase — naturally with the aim of securing a choice within their own portfolio. This is exactly where a significant part of the mis-purchase risk arises for mid-sized businesses: the neutral selection phase is skipped. A consultant who genuinely secures a successful decision does not, as a rule, implement the solution themselves. Only for that reason can they secure the implementation contractually and sign off milestones independently. No implementing system house defines exit criteria against itself.

Distinction from comparison platforms and AI research

Platforms and language models are useful in the research phase — we use AI tools consistently in preparing our own analysis. But a platform that also relies on vendor profiles and marketing operates on two sides of the market at once. And a language model is liable for nothing. Avoiding wrong decisions means having an independent third party — paid exclusively by the user — stand behind the decision-making process.

Five building blocks to minimise the risk of an ERP mis-purchase

1. The decision dossier: the defensible basis for the decision

Criteria, weighted alternatives, deliberately rejected options with justification, assumptions and risks — fully documented. In our project practice the dossier is regularly the document that managing directors present to the advisory board, shareholders and financing banks: the ERP decision is then not "IT's opinion" but a transparently derived, well-founded business decision. In family businesses with several shareholder groups, the dossier has repeatedly proven to be the instrument that prevents factions forming — because rejected options are documented with reasons, rather than being informally "dismissed".

2. Stage gates with abort thresholds: exit as a planned option

Before a contract is signed, criteria are defined whose breach triggers a project stop, restart or vendor change — and these criteria are written into the vendor contract. Our experience in project management shows that the difference between an expensive ERP project and one that threatens the company's existence almost always lies in when problems are identified. Contractually defined checkpoints enforce that honesty at set times — not only once the budget is exhausted.

3. Contract negotiation with proof of savings

Licence, maintenance and service terms are negotiated on the basis of market knowledge from over 1,200 projects — with a documented difference between the initial offer and the final agreement. In our experience, initial offers from ERP vendors consistently contain significant room for negotiation, particularly on maintenance rates, price-adjustment clauses and day rates for later change requests — precisely where costs accrue over the project's life and stay invisible in a simple price comparison.

4. Independent project support: the client's representation in the ERP project

Anyone running a construction project appoints an owner's representative accountable solely to them — not to the general contractor. In an ERP project, the decision consultant takes on that role: milestone acceptance, change-request control, escalation management and enforcement of agreed deadlines. Following the principle of "organisation before IT", this also includes checking whether organisational process changes fit the system — or whether the system is starting to distort the organisation.

5. Benefit assessment after go-live: the closed loop

Six and twelve months after go-live, the realised benefit is measured against the business case documented in the decision dossier: lead times, inventory coverage, process costs, data quality — depending on the original objectives. Only this step turns a decision into a verifiable result. It is also the component most often missing in consulting practice: after go-live, implementers and traditional selection consultants are already on to the next project.

Practical examples: avoiding wrong decisions in wholesale, medical technology and food

Wholesale: A trading company faced a contract renewal with its existing vendor — "without alternative", according to internal assessments. The structured decision dossier, setting out genuine alternatives, did not initially change the system decision, but it shifted the negotiating position: only the documented, credible option to switch made the existing vendor willing to concede — on both terms and performance commitments.

Medical technology: In regulated environments, decision documentation is not optional but required — auditors and notified bodies expect to understand the rationale behind system-relevant decisions. The decision dossier became an integral part of the quality-management documentation, sparing the company from reconstructing decision paths under audit pressure.

Food industry: During a rollout, a contractually agreed stage gate was triggered: milestone acceptance revealed that promised industry functionality (batch traceability) was not at the agreed level of maturity. Because the gate carried consequences set out in the contract, the missing components were delivered rather than deferred — go-live was delayed in a controlled way, instead of an unfinished system going live.

Who benefits most from risk minimisation in ERP selection?

Mid-sized companies in the DACH region, for whom the ERP decision is a six- to seven-figure investment and the most far-reaching IT decision of a decade. This is especially true when the advisory board, shareholders, auditors or financing banks expect a transparently documented decision — or simply when the experience isn't there, because the company last selected an ERP system fifteen years ago while the vendor runs such negotiations every week. Our project focus areas are wholesale, medical technology, food, and professional services.

 

Dr. Harald Dreher Managing Director, Dreher Consulting · 33+ years of consulting experience in the DACH Mittelstand · 500+ ERP, digitalisation and AI projects guided · 100% vendor-independent · Personally available to leadership for an initial conversation. Book an appointment directly with Dr. Dreher →