Sales reports one customer count. Finance reports another. Customer success reports a third. Each team can defend its number, because each team is measuring a different thing and calling it by the same name.
The disagreement is usually legitimate.
Different populations, different timing rules, different lifecycle definitions, and different source systems will produce different numbers. The error is not that the numbers differ. The error is that no one can say, before the meeting, which definition, record, timing rule, and owner makes the difference.
Dashboards make the disagreement faster, not smaller.
A new report that pulls from the same inconsistent definitions will reproduce the same conflict with better formatting. The work that fixes it is slower and less visible: agree the population, agree the timing, name the source of truth, and name the owner who maintains it.
Start with one decision, not every metric.
Pick the decision that is currently stalled by reconciliation — a board number, a hiring plan, a renewal forecast — and trace only the evidence that decision needs. That boundary keeps the correction contained, and it gives the company a number it can actually use while the rest of the system is repaired.