Seed-stage founders and CTOs shipping an MVP under time pressure
Five signs an MVP has competing sources of truth
The demo works, but dashboards, support tools, and the product disagree on the same entities — a pattern that compounds after product-market fit.
MVPs earn forgiveness for rough edges. They should not earn forgiveness for multiple authoritative definitions of the same noun — user, balance, order, entitlement. That debt shows up as intermittent bugs support cannot reproduce and dashboards founders stop trusting.
The signs below are architectural, not stylistic. Each one predicts expensive rewrites once investors, compliance, or a second product surface enter the picture.
1. Different totals in admin and product
If your internal admin counts active users differently than the app, you have at least two event pipelines or query definitions. Pick one canonical entity lifecycle and make every surface derive from it.
2. "Refresh fixes it" reports
When reloading or waiting resolves a user-visible error, you are often masking eventual consistency without telling the user. Document which reads are strongly consistent and which are best-effort — then align UX to that contract.
3. Feature flags stored in three places
Client defaults, server config, and a marketing tool each toggling behavior guarantees drift. Centralize entitlement and rollout state with an audit trail.
4. Spreadsheet reconciliation before board meetings
If metrics for investors are manually assembled from exports, your analytical source of truth is a person — not a system. Automate from the same warehouse or event stream engineering uses for incidents.
5. No owner for cross-cutting corrections
When a bad record appears, teams debate which database to patch. Assign a write owner per entity and a published correction path. Ad-hoc SQL across services is a symptom, not a workflow.