# What happens to our historical reporting when we add or rename a sales stage?

Every cohort and conversion report that spans the change becomes a comparison between two different funnels. Map old stages to new explicitly, keep the historical stamps intact, and annotate the change on the dashboards — a silent stage edit is one of the classic ways executive reporting quietly stops being true.

Treat stage changes as a versioned event with a date and an owner. Keep a mapping table so prior-period numbers can be restated on request, and decide up front whether you restate or show a break in the series — either is defensible; switching between them per deck is not.

## Sources

- **Method** — [Executive GTM Reporting playbook — Someone adds a stage](https://www.leanscale.team/knowledge/playbooks/executive-reporting-playbook/)

---
Cluster: Stages · https://www.leanscale.team/knowledge/answers/adding-a-stage-breaks-reporting/