NZ Government Oracle Fusion ERP Migration:

Zero Critical Defects to Production

How independent testing eliminated financial misstatement and payment failure risks across a complex Oracle Fusion Cloud ERP transformation for a NZ Central Government agency.

Zero

Critical defects to production

6

ERP modules tested

Confidential

Security clearance level

100%

Critical risks resolved pre go-live

Background

A New Zealand Central Government agency undertook a strategic financial systems transformation, migrating from Microsoft Navision — a legacy on-premise ERP — to Oracle Fusion Cloud ERP and EPM. The programme represented a complete rebuild of financial operations across six core modules: General Ledger, Accounts Payable, Accounts Receivable, Fixed Assets, Cash Management, and Expense Management.

The technical scope extended beyond Oracle Fusion to include Oracle Integration Cloud (OIC) as integration middleware, Oracle Cloud Infrastructure (OCI) for storage, and integrations to SAP SuccessFactors Employee Central and Employee Central Payroll — a complex, multi-platform environment requiring rigorous independent testing at every layer.

Security requirement: All Resync resources hold security clearances to Confidential level, meeting the agency's NZ government contractor security requirements throughout the engagement.

Scope of Independent Testing

Resync provided fully independent testing services across the programme, working alongside the implementation partner and client finance teams across five testing disciplines.

Functional Testing — 6 ERP Modules

End-to-end functional validation across General Ledger, Accounts Payable, Accounts Receivable, Fixed Assets, Cash Management, and Expense Management in Oracle Fusion Cloud.

Integration Testing — Oracle Integration Cloud

Payload integrity, authentication, error handling, and retry behaviour across all interface points between Oracle Fusion, OCI, and SAP SuccessFactors.

Data Migration Validation — GL and Supplier Data

Record-level reconciliation of migrated General Ledger journals and Supplier master data between source (Navision) and target (Oracle Fusion).

Payroll Journal Testing

End-to-end scenarios covering employee data flows from SAP Employee Central into Oracle Fusion and payroll journal postings into the General Ledger, verified against independently calculated control totals.

UAT Coordination and Sign-off

Structured UAT cycles with agency finance teams, formal defect triage with the implementation partner, and independent go/no-go assessment before go-live.

Critical Defects Identified Before Go-Live

Resync's independent testing identified critical defects during data migration validation that would have caused material financial and operational risk in production had they gone undetected.

GL Journal Migration — Financial Misstatement Risk

Unbalanced journals assigned to incorrect accounting periods were identified during General Ledger migration validation. Had these progressed to production, the agency would have faced financial misstatements and reconciliation failures — a significant risk for a government entity with statutory reporting obligations.

Supplier Master Data — Payment Failure and Duplicate Payment Risk

Missing and incorrect bank account details, plus duplicate supplier records, were identified during Supplier master data validation. These defects posed a direct risk of payment failures and duplicate payments in production — exposing the agency to financial loss and supplier relationship damage.

Delivery Approach

Resync operated with strict separation from the implementation partner throughout the programme, ensuring all test findings and go/no-go recommendations were free from delivery pressure. Test priorities were determined by financial materiality, integration complexity, and data migration criticality — not implementation schedule.

  • JIRA-based test management — real-time visibility of defect status to programme governance
  • Weekly governance reporting — execution progress, open defects, outstanding sign-off items
  • Government data governance — all sensitive data handled within the agency’s controlled environment

Security & Independence

All Resync resources operating under NZ government contractor security policy — meeting Confidential clearance requirements in practice, not just on paper. No test data was extracted outside the agency boundary.

Independence from the implementation partner meant our assessment of readiness was the honest one — free from delivery milestone pressure. This is the structural advantage of independent QA in government programmes where financial accuracy and regulatory compliance are non-negotiable.

Results

All critical and high-severity defects identified across functional testing, integration testing, and data migration validation were resolved and independently re-verified before go-live sign-off was granted.

Zero critical defects progressed to production

All critical and high-severity defects identified across functional testing, integration testing, and data migration validation were resolved and independently re-verified before go-live sign-off was granted.

Financial misstatement and payment failure risks eliminated

The GL journal and Supplier master data defects were remediated before any data entered production. The agency’s first period-close on Oracle Fusion proceeded without reconciliation failures or payment errors from migrated data.

Full test lifecycle within NZ government security requirements

Resync delivered from functional test design through UAT coordination and migration sign-off without disruption to the agency’s security and data governance obligations.

Ongoing independent testing post go-live

Resync continued as independent testing partner across subsequent release cycles on the Oracle Fusion platform following the initial go-live.

Planning an ERP Migration or Financial Systems Transformation?

Talk to New Zealand's independent QA specialists for government and regulated-industry programmes.