What to ask a VMS vendor before you sign
Feature checklists rarely separate vendor management systems. Every serious product does intake, sourcing, approvals, timesheets and reporting. What separates them is a small number of things that are difficult and expensive to change after you sign. These are the questions worth the meeting.
1. Can an occasional user complete a request without help?
Ask to watch someone who is not a procurement specialist raise a request, unaided, with no training. Not a demo — an actual attempt.
This is the single strongest predictor of whether a rollout works. A system that hiring managers avoid produces incomplete data, and incomplete data produces no savings and no compliance benefit. Ask every vendor for their hiring-manager adoption rate and how they measure it.
2. Where does the data live, and who can reach it?
Your consultant records contain personal data. Ask where it is stored at rest, which sub-processors touch it, whether support access crosses a border, and whether your content is used to train models. Get the answers in writing before signature, because they are contract terms, not features.
3. Who owns the integrations when they break?
Every vendor has a connector list. The list is not the question. Ask who builds and maintains each integration, what the response time is when an upstream API changes, and whether you or the vendor carries the cost of the fix. An integration nobody owns fails quietly, and you find out during month-end.
4. What does this cost at three times the volume?
Ask for pricing modelled at your expected spend in three years, not today's. Understand what scales — users, engagements, spend, transactions — and what happens at the boundaries. A model that is cheap at your current size and punitive at your target size is a problem you buy now and feel later.
5. Can you get your data out?
Ask for a full export while you are still a prospect. Active engagements, supplier records, approval history and rate history, in an open format, on demand and without a fee.
Rate history matters most. It is the asset that makes future benchmarking possible, and losing it resets your negotiating position to zero. A vendor confident in their product will not hesitate here.
6. What can the AI do without a human?
If a product uses agents, ask precisely what they can do unsupervised. Drafting, benchmarking and reconciliation proposals are safe — you review them. Committing spend or selecting a supplier without approval is not. Ask how limits are enforced and what the audit trail records.
7. How long until the first live request?
Not configuration time — elapsed time from signature to a real request raised by a real hiring manager. The gap between those two numbers is where implementations quietly fail, usually because agreeing approval hierarchies and spend policy across procurement, HR and finance takes longer than anyone budgets for.
The honest summary
Most of the value in a VMS comes from visibility, and visibility only happens if people use the system. Adoption, data ownership and integration maintenance are what determine that. Almost everything else on a feature comparison is noise.
