Oracle Fusion Cloud ERP · General Ledger
Oracle Fusion GL
Architecture Series
Three articles on the structural decisions that determine what your Oracle Fusion General Ledger can — and cannot — do for the life of your implementation. Supported by interactive tools, configuration guides, and white papers.
3
Articles in the series
5
Interactive tools
3
White papers & guides
13
Secondary ledger use cases
The Three Articles
1
Foundation Layer · Balancing Segments
Why One Balancing Segment Was Never Enough
How Oracle Fusion enforces financial accountability across multiple dimensions simultaneously — and why the single-segment approach that most R12 implementations used leaves value on the table.
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2
Parallel Accounting Layer · Secondary Ledgers
The Ledger That Runs in Parallel
Oracle Fusion Secondary Ledgers and the accounting policy problem they solve — thirteen use cases, the R12 workarounds they replace, quantified KPIs, and what changes across SAP, D365, and NetSuite migrations.
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3
Core Object · Ledger Definitions
What Is a Ledger in Oracle Fusion — and Why It Matters More Than You Think
The 4C Framework, the four ledger types, the shared ledger question, Legal Entity vs Business Unit vs Ledger — and the design decisions that cannot be undone once transactions are posted.
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Interactive Tools — Hosted on GitHub
Interactive Explorer
Balancing Segments Explorer
Explore how primary, secondary, and tertiary balancing segments work in Oracle Fusion — with live examples across different organisational structures and segment configurations.
Decision Tree
Ledger Design Decision Tree
Answer four questions about your organisation — primary vs shared ledger, secondary vs reporting currency, conversion level, number of secondary ledgers — and receive a specific architecture recommendation.
Configuration Guide
Secondary Ledger Setup Guide
Phase 1 base setup (8 steps) and Phase 2 SLA rule authoring for all six subledgers — GL, AP, AR, Fixed Assets, Cost Accounting, Projects — with navigation paths, field tables, and checkpoints.
Period Close Guide
Reconciliation Report Guide
Five variance types, investigation workflow, threshold recommendations by use case, and an interactive period-close checklist. For finance teams running secondary ledger reconciliation every month.
Interactive Explorer
13 Secondary Ledger Use Cases
Every parallel accounting scenario — IFRS vs local GAAP, IFRS 9, IFRS 16, IAS 29, JV gross reporting, pre-consolidation staging, and more. Each use case has scenario, SLA rules, accounting entries, and KPIs.
White Papers & Technical Documents
Multiple Balancing Segments — White Paper v1.0
Technical reference for implementing primary, secondary, and tertiary balancing segments in Oracle Fusion. Covers configuration, use cases, and design principles.
Secondary Ledger Setup — Technical Guide
Complete configuration reference for Oracle Fusion Secondary Ledgers — base setup, SLA rule authoring, CoA mapping, and period close procedures across all subledgers.
Ledger Setup — Technical Guide
Technical reference for Oracle Fusion ledger design — the 4C Framework, ledger types, shared ledger conditions, Legal Entity structure, and the one-way design decisions.
This series distils the design and configuration decisions that determine whether an Oracle Fusion General Ledger implementation delivers on its promise — or creates technical debt that compounds over years. The articles, tools, and guides are built from direct implementation experience across industries, geographies, and migration paths from R12, SAP, D365, and NetSuite.
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