ERP changes daily work: new screens, different approvals, different responsibilities. User involvement means the people who will operate the system tomorrow help shape it before decisions are locked in. Without them, gaps appear in workflows, workarounds spring up in Excel, and resistance grows after go-live. That is not a “change problem alone”, it is missing validation against reality. Whoever invites departments only to training tests too late whether the system fits practice.

What typically goes wrong without involvement

IT and executives often know the strategic goals. Business departments know the edge cases: exceptions for customers, manual corrections in the warehouse, informal approvals by phone. When that reality does not appear in workshops and tests, it lands later as a change request or as a shadow process. Typical symptoms:

• Screens without the fields daily work needs
• Workflows that map the formal process but miss the real one
• Dual maintenance in Excel because the system is not trusted
• High ticket load in the first months after go-live

Many of these patterns appear in the overview Common ERP implementation mistakes. User involvement is the operational countermeasure: check early, correct early, create ownership early.

How key users and pilot teams should work

Involvement needs structure, not only “everyone may speak”. What has proven itself:

• Name key users per area (sales, purchasing, warehouse, finance, production), with clear time release
• Gather requirements in workshops, not only via questionnaire. Questionnaires capture wishes; workshops surface conflicts and exceptions
• Test prototypes or staging systems against real edge cases and preferably real data
• Schedule feedback before milestones, not at project end as “acceptance under time pressure”

Key users are not a pure IT extension. They translate between business logic and system logic and share ownership when scope boundaries are drawn. Without mandate and without calendar time, the role stays symbolic.

Why real data and real processes matter

A demo with ideal data shows that software is clickable. It does not show whether your approval process holds for a special customer, a partial delivery, or a recalculation. That is why pilot runs with realistic cases belong in the plan. A 48h prototype can serve exactly that purpose: make one sub-process tangible before fixed price and large project are committed. Investment: 950 euros plus VAT, credited toward follow-on projects.

Nuclos supports joint implementation with business departments: screens, workflows, and processes refined iteratively. Process-oriented rollout allows early quick wins for pilot teams instead of waiting for big bang. Background: Process structure instead of module structure. Whoever wants to configure themselves finds the entry for business and IT in Nuclos Workspace. For guided delivery, Nuclos Enterprise remains the path to productive ERP in 30 days on agreed scope.

How involvement and change management connect

Involvement is the operational practice. Change management is the frame: communication, training, role clarity, support after go-live. Both belong together. Without involvement, change management stays appeals. Without a change frame, involvement stays fragmented. The framing is in Change management in ERP implementations.

Adoption becomes measurable after go-live: fewer support tickets on the same topics, shorter lead times in the pilot process, less parallel Excel after three months. Those metrics should be defined from the start, in parallel with the business project goals.

What executives and IT should fix now

Name key users with time budget before software selection is finished. Plan feedback milestones before “done” markers. Reserve pilot time with real cases. And clarify who decides scope boundaries when business wishes and budget collide. Involvement without decision rules only produces longer discussions. Involvement with clear mandate produces reliable requirements and early adoption.

Next steps

• “Change frame and communication: Change management in ERP implementations”
• Typical project mistakes: Common ERP implementation mistakes
• Clarify goals and scope before workshops: How do you define ERP goals and scope before choosing software?