ERP Upgrade Go-Live Collapsed, Rescued and Completed — Operations Restored Within 18 Days

• The implementation partner executed a hard cutover with no parallel-run period — the legacy system was decommissioned before the new ERP was validated under live order volumes, leaving no fallback when failures emerged on day one.
• An incomplete data migration left 2,800 customer accounts, 950+ product records, and all B2B pricing tiers either missing or corrupted in the new system — staff could not look up, create, or ship a single order.
• Training had been delivered in a single session six weeks before go-live. With no recent practice and a broken system on screen, staff had no path to resume operations while the technical team attempted triage.
• The implementation partner withdrew on day two, citing scope disputes, leaving the business without vendor support at the moment of maximum operational crisis.

• ✓Arrived on-site on day three and ran a rapid triage: separated which order types could be processed manually in the interim from those requiring the new system, and restored emergency read-only access to the legacy database to unblock the most urgent shipments.
• ✓Ran a 5-day data recovery sprint — extracted master data from the legacy system's backup, rebuilt 2,800 customer accounts, 950+ product records, and all pricing tiers in the new ERP using a structured migration script with field-level validation at every step.
• ✓Conducted a post-mortem analysis identifying seven root causes of the go-live failure: missing data validation gates, no rollback plan, single-session training, no cutover rehearsal, no hypercare staffing plan, late stakeholder sign-off, and scope creep not flagged before go-live.
• ✓Used the post-mortem findings to redesign the remaining rollout in phases: core order processing live in week two, financial reporting and advanced configuration in week three, with daily reconciliation checkpoints and dedicated on-site support for the first 30 days post-stabilisation.

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