ERP Selection Checklist: Choosing the Right System Without Vendor Bias
- Edmond Lopez
- 2 days ago
- 6 min read
Avoiding the common pitfalls of an ERP selection
Most ERP projects that struggle later can trace the problem back to the selection phase. The wrong system gets chosen for the wrong reasons. A flashy demo wins. A familiar brand feels safe. A stakeholder pushes their favourite tool. Then implementation reveals the gaps, and the business pays for those gaps in customization, workarounds, and slow adoption.
A solid ERP selection checklist keeps the selection grounded in reality. It makes the decision less emotional and more measurable. It also keeps you honest about what your business truly needs, not what a vendor happens to show well in a demo.
Define what "good" looks like in the next 2 years
Before you compare systems, define outcomes you want within 12 to 24 months. Keep it simple and operational.
Shorter month-end close.
Fewer spreadsheets and manual reconciliations.
Better cash control and approval workflows.
Cleaner inventory accuracy and fewer surprises.
Reporting that leaders trust without debate.
Outcomes matter because they become your evaluation filter. If a system cannot help you achieve your top outcomes without heavy workarounds, it is not the right fit, even if it looks great in a scripted demo.
Run a requirements workshop that reflects real life
A requirements workshop is not a meeting where everyone lists features they want. It is a structured session where you map real workflows and identify what must be true for those workflows to succeed.
Start with your value streams: quote-to-cash, procure-to-pay, inventory or production, and record-to-report. Then list the real scenarios that cause friction today: partial shipments, returns, credit holds, price overrides, multi-entity reporting, approval thresholds, and month-end close routines.
A key rule is to use real examples from your business. Bring a few real orders, real invoices, and real exceptions. That prevents the workshop from drifting into generic requirements that sound good but do not protect you from risk.
If your organization wants help structuring this properly, requirements workshops often fit naturally within broader ERP services planning because the workshop results become your roadmap, not just a shopping list.
Distinguish "must-have" from "nice-to-have"
Many SMBs accidentally mark everything as must-have. That makes scoring meaningless.
A must-have is something that blocks operations or compliance if missing. A nice-to-have is something that improves efficiency but can be phased in later.
If you keep must-haves limited, selection becomes clearer. You also reduce the risk of choosing a system that promises everything but delivers slowly.
Build a demo script so vendors cannot steer the story
A demo without a script is not a demo. It is a sales performance.
An ERP demo script should be based on your real workflows. You want to see the system handle your most common transactions and your most painful exceptions. The goal is to force the vendor to show you what daily life looks like, not what their best slide looks like.
A good demo script includes:
Create a customer with terms, tax rules, and ship-to logic.
Create an item with units of measure and category assignment.
Enter an order with a discount outside guardrails and see approval routing.
Ship partially and invoice based on shipment.
Process a return and credit.
Enter a PO, receive partially, match invoice, and route for approval.
Run a month-end close routine and view key financial reports.
Show role-based access and audit history for key actions.
When you script the demo, you stop being "shown" the system and start evaluating it.
Score with a matrix that reflects business reality
A scoring matrix keeps selection fair and explainable. It also helps you communicate the decision to leadership without sounding subjective.
Build categories that match what matters:
Process fit for your core workflows.
Exception handling and approvals.
Reporting and analytics capability.
Integration approach and maintainability.
Security and audit controls.
Implementation complexity and partner support.
Usability for daily users.
Weight categories based on importance. For example, if cash and margin control are critical, approvals and reporting should be weighted heavily. If your business is integration-heavy, integration maintainability should carry more weight.
Then score each vendor consistently. Do not let one vendor "win" because they were more polished. Force every vendor to run the same script.
Analyze total cost of ownership, not just license price
License pricing is only one part of cost. The real cost often shows up in implementation effort, customization, integrations, reporting, and ongoing support.
A realistic total cost of ownership model should include:
Licenses or subscriptions.
Implementation services.
Data migration and cleanup effort.
Integrations and connectors.
Reporting and analytics tools.
3rd party add-ons.
Training and adoption support.
Ongoing support and maintenance.
Upgrade cadence and future enhancements.
An ERP that is cheaper on paper can be more expensive in practice if it requires heavy customization or constant consulting support.
This is also where you should ask vendors for clarity on what happens after go-live:
What does ongoing support look like?
What upgrades are required and how often are updates released?
How do they handle breaking changes?
Evaluate partner capability as seriously as the software
In SMB ERP projects, the implementation partner often matters as much as the platform. A strong partner will challenge unclear requirements, protect scope, and build workflows that fit your business without over-customizing. A weak partner will say yes to everything, then struggle later.
Ask practical questions:
How do you handle scope changes?
How do you run testing and UAT?
How do you train users by role?
How do you manage data cleanup and validation?
How do you support after go-live?
If you want predictable delivery, partner discipline matters. Many SMBs use dedicated project management services alongside ERP delivery because it keeps governance, testing, and decision-making consistent.
Validate with a small proof-of-fit, not promises
If the decision is high impact, a proof-of-fit reduces risk. This does not need to be a full pilot. It can be a short validation sprint where the vendor loads a small dataset and runs your key scenarios.
The purpose is to confirm that the platform and partner can handle your reality. It also reveals hidden effort early, especially around integrations, reporting definitions, and master data structure.
Plan the phased roadmap before you sign
Many selection teams choose a system first, then think about rollout later. That is backward.
Before you sign, define the phase one scope, the phase two backlog, and your target timeline. Confirm what will be delivered in the first go-live and what will not. Confirm how success will be measured.
This reduces the risk of signing a contract based on assumptions that are not written down.
Common traps to avoid during ERP selection
Being impressed by a demo without seeing exceptions
Most ERPs can handle a perfect transaction. The real test is exceptions: partials, returns, overrides, approvals, and reconciliations.
Selecting based on features you will not use
A large feature list looks comforting, but unused features add complexity. Focus on fit and usability, not breadth.
Underestimating master data and governance
Selection should include master data standards and ownership. If your item master is messy, the ERP will not fix it automatically.
Ignoring integration ownership
Integrations are usually the first pressure point. If you cannot own and monitor them, you will pay for it later.
Treating implementation as an afterthought
A great platform with weak delivery can still fail. Selection must include delivery approach.
A quick example: how a scoring matrix changes the decision
A growing distributor compared two platforms. The first demo looked polished and had a larger feature list. The second demo felt simpler but handled approvals and exception workflows more cleanly.
Using a weighted scoring matrix, the second platform won because it fit core workflows without heavy customization and had clearer reporting definitions. The decision was easier to defend because it was measurable. After go-live, adoption was faster because the system matched how people worked daily.
That is exactly why this checklist exists. It turns selection into a decision you can explain and live with.
Frequently Asked Questions
How long should ERP selection take for an SMB?
It depends on complexity, but most SMBs can run a disciplined selection in a few weeks if they have a clear workshop, a demo script, and a scoring matrix. The real-time savings comes from preventing rework later.
Do we need to involve every department?
You need representation from key value streams: sales or customer service, operations or supply chain, and finance. Too many voices without clear ownership creates noise. The better approach is fewer participants with clearer accountability.
What is the most important part of an ERP demo?
Exception handling. Partial shipments, credits, approvals, matching, and month-end routines. If a vendor cannot show those smoothly, daily operations will feel painful.
How do we compare vendors fairly?
Use the same demo script and the same scoring matrix. Weight categories based on business outcomes, and score consistently. Do not let demo polish replace process fit.
What should we ask the implementation partner?
Ask how they manage scope, testing, training, data migration, and post-go-live support. Ask for examples of similar SMB projects and what they did when things got hard. Delivery discipline matters as much as the software.
References
This post reflects EEZEE Solutions’ experience guiding Ontario SMBs through ERP evaluation and implementation. Insights draw on project delivery experience, Microsoft Dynamics partner resources, and structured project governance frameworks.
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