Step-by-Step Guide: Ensuring Operational Continuity

1. Pre-Close Validation (T – 30 to T – 1)

1. Confirm Day 1 scope charter, critical-system checklists, and TSA inventory are all green-status.
2. Execute full “dress rehearsal” cut-over in a non-production window; capture defects and retest until zero critical issues remain.
3. Complete Business Continuity Plan walk-through with Incident Commander and functional leads; ensure emergency contacts are current.
4. Freeze change requests on critical systems 72 hours before legal close.

2. Cut-Over Execution (H – 4 to H + 4)

1. Open Command Centre bridge four hours before close; verify audio, video, and dashboard feeds.
2. Functional owners run final health checks (network latency, database replication, application status).
3. Legal team confirms share transfer and entity activation at the scheduled minute (H = “hour of close”).
4. IT flips final DNS entries, enables new domains, and confirms identity-platform cut-over.
5. Finance posts opening balances; Treasury releases first test payment; Customer Service processes first live order.
6. Command Centre logs Go/No-Go status at H + 1 for each function; escalate any red items immediately.

3. First 24 Hours

1. Monitor system and business-process KPIs on a 30-minute cadence (ERP latency, order throughput, call-centre SLA, cash balance).
2. Track TSA performance metrics and raise any SLA breaches to the parent’s service owner within two hours.
3. Issue internal Day 1 bulletin summarising cut-over results and next-step priorities; circulate to all employees.
4. Begin proactive outreach to top-tier customers and suppliers confirming seamless service.

4. First 72 Hours

1. Reconcile transactional data between source and target systems; fix variances before next cycle run.
2. Conduct daily Command Centre stand-ups; downgrade to twice-daily when all metrics stabilise green.
3. Review help-desk and call-centre ticket volumes; deploy surge support if volumes exceed baseline by >20 %.
4. Validate payroll preview and benefit enrollments to prevent first-cycle errors.

5. First 30 Days

1. Close the inaugural month-end financials; produce standalone P&L, balance sheet, and cash-flow statements.
2. Exit the first wave of TSAs (quick-win services such as telephony or reporting extracts).
3. Conduct cyber-security penetration test; remediate findings within agreed SLAs.
4. Perform lessons-learned workshop; feed improvements into remaining cut-over waves.

6. Governance & Escalation

1. Maintain Command Centre log with issue, owner, ETA, and resolution evidence.
2. Escalate unresolved red-status items to the Steering Committee within four hours.
3. Provide a daily executive dashboard covering:
   • Operational KPIs (on-time shipping, order backlog, production uptime)
   • Financial KPIs (cash balance, DSO, AP ageing)
   • IT KPIs (system availability, incident count, TSA SLA compliance)

7. Success Criteria for “Steady State”

• 99.5 % of customer orders processed within contractual lead times for five consecutive business days.
• Zero high-severity IT incidents in any 48-hour window.
• Month-end close completed within target timeline (+0 days vs. Day 0 plan).
• All mandatory regulatory filings submitted on or before due dates.
• Employee voluntary-attrition rate ≤ normalised monthly baseline.

Meeting these benchmarks allows the Command Centre to dissolve, handing control to normal operational governance.

Outcome — By following this sequenced, owner-driven guide, the carve-out maintains uninterrupted service, meets all compliance requirements, and establishes a stable platform for post-Day 1 optimisation and growth.