Decision
Go-live at fiscal close (Mar) or defer to June?
Reconciliation needs 6–8 weeks. A phased March start with a June full cutover balances fiscal-close benefit against billing-error risk.
Decision
| Criterion | Big-bang March | Phased March | Defer to June |
|---|---|---|---|
| Billing-error risk | High | Medium | Low |
| Fiscal-close benefit | Full | Partial | Deferred |
| Customer trust | Low | Medium | High |
| Engineering feasibility | Low | Medium | High |
Recommendation
Phased March start with June full cutover.High confidence
Evidence
ERP error logSato's estimate
Risks of each option
- Big-bang March repeats R1.
- Defer loses fiscal-close savings.
Open questions
- Can partial savings be booked at fiscal close?