A phased infor m3 migration cutover strategy aligned to statutory close calendars (HGB, SAF-T, FEC), with parallel-run CDC replay, ION BOD re-platforming to OIC, MEC EDI cut, rollback gates and a 200+ item readiness checklist.
Most M3 customers run 3–15 CONOs across multiple jurisdictions with different statutory close calendars, different VAT periods and different filing deadlines. A single big-bang cutover collides with all of them simultaneously. Phased per-CONO cutover aligned to each country's close window doesn't.
Generic ERP cutover playbooks assume a single fiscal entity, a single statutory calendar, a single weekend window. M3 customers don't have that. A Nordic parent with German, French, Polish and Italian operating entities runs four different statutory close calendars, four different VAT filing windows, four different audit-trail retention regimes, and four different localisation rule sets. Cutting them all on the same weekend means cutting at least three of them at the wrong moment in their close cycle.
Syntra ETL's infor m3 migration cutover strategy is phased by design. Each CONO is cut on its own optimal weekend — typically at month-end or quarter-end, after the prior statutory period has closed in M3 and before the new one opens in Fusion. The first CONO cut is the riskiest; subsequent CONOs benefit from the operational pattern proven on the first, with progressively higher confidence and shorter validation windows.
Parallel run during the phased cutover window keeps M3 BE live as the source-of-truth, with CDC-based delta replay into Fusion confirming the two sides agree to the cent at every period boundary. Only after finance, supply chain, manufacturing, quality and compliance leads sign off per CONO does that CONO cut to Fusion-only mode and M3 BE shifts to read-only archive for that entity.
Each pillar has its own playbook, sign-off authority and rollback gate. Together they make the cutover engineered rather than improvised.
Per-CONO cut window aligned to country statutory close calendar — HGB month-end, French FEC, Portuguese SAF-T, Polish JPK, Nordic VAT. No CONO cut at the wrong moment in its period.
M3 BE CDC stream (Oracle/SQL Server CDC or M3 audit-trail tables) replays deltas into Fusion via REST in near-real-time. Both sides live, both sides reconciled per period.
ION BOD subscriptions and MEC EDI flows re-platformed to OIC adapters during parallel run, with dual-receive mode (M3 + Fusion both receive). Cut at trading-partner inbound switch.
Every domain covered: TB reconcile, AP/AR aging, inventory, lot/serial, ION/MEC, security, FBDI/HDL batch completion, statutory pre-flights, business sign-offs. Every item owned.
Per-stage rollback procedures defined: pre-cut (trivial), parallel (trivial), immediate post-cut (M3-back replay), post-first-close (period-reopen and replay). No cut is irreversible until period close commits.
Per-domain sign-off authority per CONO: finance (TB, AP, AR), tax (SAF-T, HGB), supply chain (inventory, PO, SO), manufacturing (MO, BOM), quality (lot/serial, Part 11), IT (security, integration), compliance (audit lineage).
The orchestrated sequence for cutting one CONO from M3 to Fusion-only mode. Repeated per CONO over the phased cutover window.
M3 transaction entry for the in-scope CONO frozen at the defined cutover moment. In-flight transaction inventory captured per entity type and per status. War-room activated, on-call rotation confirmed.
Final M3 BE extract for the CONO captured. CDC delta accumulated since the bulk-load reconciled baseline replayed. Hash-signed manifest produced. Source-of-truth baseline locked.
Final FBDI/HDL/REST loads to Fusion ESS for the CONO. Per-batch monitoring to completion. Row-level reconciliation gates pass. Trial balance, AP/AR aging, inventory and lot reconciled to zero variance.
Trading-partner inbound switched from M3 ION receiver to OIC-only for the CONO. Outbound document flows (supplier remittance, customer invoice PDF, ASN) cut to OIC. Dual-receive parallel mode ends for this CONO.
Per-domain sign-offs collected per CONO: finance (TB), AP/AR controllers (aging), supply chain (inventory), quality (lot/serial), IT (integration), compliance (audit lineage). SAF-T/HGB pre-flights run.
CONO declared live in Fusion. M3 BE for the CONO shifted to read-only archive mode. Operational hypercare team on shift. Initial Fusion transactions monitored. Hypercare runs for 5–10 business days post-cut.
Cutover doesn't end at go-live. Hypercare is the structured operational support phase that confirms the new Fusion environment is operationally stable.
Tier-1 user support, tier-2 functional and integration troubleshooting, tier-3 Syntra ETL engineering. SLA per severity. War-room remains active for first 5 business days post-cut.
Daily reconciliation for the cut CONO during hypercare: opening balance per day = prior-day closing per day, AP/AR aging, inventory movement, lot/serial movement. Variance flags escalated immediately.
OIC-routed ION/MEC inbound and outbound traffic monitored per trading partner. ASN, invoice, remittance, dispatch all confirmed. Any partner-side rejection captured and root-caused.
Every reported issue logged, classified (training / config / mod-rebuild / data-fix / true-bug), routed to owner, tracked to resolution. Daily standup with finance, ops, quality and IT.
Power-users embedded in the war-room. New-user training reinforcement sessions per day for first week. Quick-reference cards distributed. Floor walks for shop-floor and warehouse users.
Hypercare exits per CONO when: zero severity-1 issues open, daily reconcile clean for 5 consecutive days, user satisfaction survey positive, business sign-off received. CONO transitions to BAU support.
An infor m3 migration cutover strategy is the orchestrated plan for the moment your production transactions stop posting to M3 and start posting to Oracle Fusion — covering the run-up freeze window, the final delta capture, the parallel-run period, the actual cut, and the M3 read-only archive transition. For most M3 customers it's not a single weekend event. Multi-CONO multi-jurisdiction tenants typically cut over per-CONO or per-domain over a 4–8 week phased window, aligned to statutory period close calendars (German HGB month-end, Nordic VAT periods, French FEC, Portuguese SAF-T). Syntra ETL ships a cutover playbook battle-tested across dozens of M3 conversions — sequenced, scheduled, with rollback gates at every stage.
For a single-CONO single-jurisdiction tenant, cutover is typically a 48–72 hour window: Friday evening M3 freeze, weekend final delta and reconcile, Monday morning Fusion live. For multi-CONO multi-jurisdiction tenants (which is most M3 customers), the cutover is phased — typically 4–8 weeks of staggered CONO cuts aligned to each country's statutory close calendar. Each CONO cut itself remains a 48–72 hour window, but they don't all happen on the same weekend. Phased cutover lets the team focus rigour on one CONO at a time, validates the operational pattern before scaling, and matches statutory period boundaries so post-cutover SAF-T/HGB/FEC filings come from a single source (Fusion) per period.
Parallel run is the period (typically 1–2 statutory close cycles) where both M3 and Fusion are taking the same operational transactions, with reconciliation confirming the two sides match to the cent. The infor m3 migration cutover strategy uses change-data-capture on the M3 BE (Oracle CDC, SQL Server CDC, or M3 audit-trail tables) to replay every M3 transaction into Fusion via REST APIs in near-real-time. Finance closes both ledgers per period, reconciliation confirms they agree, and only after that sign-off does the cut to Fusion-only happen. Parallel run gives finance the confidence to commit — and provides a clean rollback if any unexpected variance emerges. ION BOD subscriptions stay live on the M3 side during parallel run, then cut to OIC at the BOD-receiver level during the final cut weekend.
ION BODs and MEC EDI flows are typically the single largest non-data risk in an M3 cutover. The infor m3 migration cutover strategy handles them as a parallel workstream that lands ahead of the data cutover. Every active ION BOD subscription is mapped to its Oracle Integration Cloud (OIC) equivalent — same trading-partner identifiers preserved, same document types, same EDI message versions. OIC adapters are stood up and tested in dual-receive mode (both M3 and Fusion receive the inbound) during parallel run, so any mapping bug surfaces before cut. MEC outbound document flows (supplier remittance, customer invoice PDFs, ASN to retail) are re-platformed similarly. At the cut moment, the trading-partner inbound is switched to OIC-only and the M3 ION receiver is decommissioned.
The cutover playbook freezes M3 transaction entry at a defined cutover moment — typically a Friday evening for a single-CONO weekend cut. In-flight transactions (open sales orders awaiting shipment, manufacturing orders mid-operation, AP invoices awaiting approval, AR receipts awaiting application) are inventoried per status and migrated with that exact status preserved. An MO that was at operation 030 of 050 lands in Fusion at operation 030 of 050. An SO that was picked but not shipped lands in Fusion picked but not shipped. An AP invoice mid-3-way-match lands mid-3-way-match. The cutover playbook explicitly defines a freeze-window for each entity type — typically 4–8 hours for the freeze + extract + load + validate sequence per CONO.
Yes — the infor m3 migration cutover strategy explicitly includes rollback gates at every stage. Pre-cut: trivial, M3 is still live and Fusion is shadow. During parallel run: trivial, M3 is still the source of truth and Fusion is being validated. Immediately post-cut (first 24–72 hours): supported via M3-back rollback procedure — Fusion transactions are exported, replayed back into M3, M3 returns to operational mode. After period close: harder but supported — typically requires re-opening the prior period in M3, replaying Fusion deltas, re-running period close. Beyond first period close: rollback is no longer a practical option, but parallel-run sign-off and the validation framework ensure you don't get there with unresolved variance.
Birst dashboards finance has come to depend on don't disappear at cutover — they shift source. During parallel run, Birst dashboards continue running against M3 BE (the operational source-of-truth during the parallel period). At cut, OTBI, BI Publisher and Smart View replacements (built during the migration build phase) become the primary analytics. For the post-cut period when finance is verifying that the new analytics give them the same answers, the legacy Birst dashboards stay accessible against the M3 read-only archive — typically for 60–90 days. After confidence is established, Birst is decommissioned as part of the M3 BE decommissioning sequence.
The infor m3 migration cutover strategy ships a 200+ item go-live readiness checklist covering every domain. Highlights: trial balance reconciled to zero variance per CONO, AP/AR aging reconciled per supplier/customer, inventory valuation reconciled per warehouse, lot/serial chain integrity verified by recall query replay, inter-company reconciled per CRS165 pair, ION BOD subscriptions cut to OIC and trading-partner traffic verified, MEC EDI flows cut and partner ASN/inbound verified, Fusion enterprise structures and ledgers active for all in-scope BUs, FBDI/HDL load batches complete and reconciled, security profiles assigned per user role, OTBI/BI Publisher reports verified, SAF-T/HGB pre-flights signed, support shift schedule (M3 + Fusion + integration partners) staffed, business sign-offs collected (finance, supply chain, manufacturing, quality, IT, compliance). Every item has an owner and a gate-keeper.
30-minute walkthrough. We'll review your multi-CONO statutory calendar, ION/MEC integration topology, parallel-run framework and rollback gates — and propose a phased cutover plan sized for your environment.