T‑0 late night — Integration switch
- Update routes, tokens, certificates
- Point tax, payments, WMS, 3PL, bank feeds
- Enable jobs; smoke: OTC, P2P, inventory move, journal, payment file
T+0 morning — Business open
Acceptance limits
RACI (at a glance)
Eng: A build/deploy/rollback • Finance: A recon/sign‑off • Ops: A monitoring/support • CM: A gate decisions