Audit Trail & Evidence Management
Every emissions figure needs a story: where the data came from, how it was calculated, who approved it, and what methodology was applied. NetNada's Audit Trail & Evidence Management documents every data point, calculation, and decision in your carbon accounting—creating a complete chain of custody that satisfies external assurance providers, the Clean Energy Regulator, and your board's governance requirements.
How It Works
As climate disclosure moves from voluntary to mandatory, the standard of evidence behind your emissions data is rising. NetNada automatically captures audit-grade documentation as you work—no separate audit preparation process required. When assurance time arrives, your evidence is already organised and ready.
Automatic Audit Trail Capture
Every action in NetNada is automatically logged: data entries, edits, deletions, imports, calculations, methodology selections, and approvals. Each log entry records who performed the action, when it occurred, and what changed. No manual documentation effort required—the audit trail builds itself as you use the platform.
Attach Source Evidence
Link source documents to your activity data—electricity invoices, fuel receipts, meter readings, supplier statements, travel records, and waste manifests. Each data point connects to its supporting evidence, creating a traceable path from raw document to calculated emission. Upload PDFs, images, or spreadsheets directly against data entries.
Document Methodology Decisions
Record why you chose specific calculation methods, emission factors, estimation approaches, and boundary definitions. When an auditor asks 'why did you use this factor?', the answer is already documented in context. Methodology notes attach to the relevant data point, not buried in separate documents.
Manage Approval Workflows
Configure data approval workflows where facility data requires manager review, significant changes require sustainability lead sign-off, and final submissions require executive approval. Each approval is timestamped and recorded, demonstrating governance over your emissions data.
Export Audit Packs
Generate comprehensive audit packs for external assurance providers, CER compliance reviews, or board governance documentation. Audit packs include data summaries, source evidence, methodology documentation, approval records, and change logs—organised by scope, facility, or reporting period.
Why Use NetNada's Audit Trail & Evidence Management
Assurance-Ready from Day One
External assurance of climate disclosures is becoming standard—limited assurance now, reasonable assurance coming. NetNada captures the evidence assurance providers need as you work, rather than requiring a separate audit preparation exercise. When assurance time arrives, your evidence is already complete.
Reduce Assurance Costs
Assurance providers charge based on the effort required to verify your data. Well-organised, complete audit trails reduce auditor effort significantly. Organisations using NetNada's evidence management typically experience lower assurance fees because auditors can verify data efficiently.
Satisfy CER Compliance Reviews
The Clean Energy Regulator can request supporting documentation for NGER submissions at any time. NetNada enables you to generate comprehensive evidence packages on demand, demonstrating the data lineage and methodology behind every reported figure.
Protect Against Greenwashing Claims
As scrutiny of corporate climate claims intensifies, the ability to substantiate every emissions figure is critical. A complete audit trail demonstrates that your disclosures are based on verifiable data and defensible methodology—not estimates or aspirational numbers.
Maintain Institutional Knowledge
When team members leave, their knowledge of data sources, methodology decisions, and calculation rationale often leaves with them. NetNada's documented audit trail preserves this institutional knowledge in the platform, ensuring continuity regardless of staff turnover.
Demonstrate Governance Due Diligence
AASB S2 requires governance disclosures about how organisations oversee climate-related matters. Documented approval workflows, review processes, and data governance procedures provide tangible evidence of governance in action—supporting your Governance pillar disclosures.
Who Uses Audit Trail & Evidence Management
Organisations Undergoing External Assurance
Companies engaging assurance providers to verify climate disclosures need organised, complete evidence. NetNada's audit packs give assurance providers exactly what they need—data lineage, source documents, methodology rationale, and approval records—reducing both assurance duration and cost.
NGER-Registered Entities
The Clean Energy Regulator can audit NGER submissions and request supporting documentation. NetNada maintains audit-ready evidence for every NGER data point, enabling rapid response to CER compliance reviews without disrupting your team.
Boards and Audit Committees
Board audit committees increasingly oversee climate data quality alongside financial data. NetNada provides the evidence framework that audit committees expect—documented controls, approval workflows, and traceable data lineage parallel to financial reporting standards.
Sustainability Teams Managing Data Quality
Sustainability teams responsible for emissions data accuracy need tools to track data quality, identify gaps, and manage corrections. The audit trail provides visibility into data entry patterns, error rates, and approval bottlenecks across the organisation.
Consultants Preparing Clients for Assurance
Sustainability consultants helping clients achieve assurance-ready data quality can use NetNada's evidence management to build the documentation framework. Standardise evidence requirements across your client portfolio and demonstrate data readiness before engaging assurance providers.
Audit Trail & Evidence Management Features
Automatic Activity Logging
Every data entry, edit, deletion, import, and calculation is automatically logged with user identity, timestamp, and change details. No manual logging required. The complete history of every data point is preserved and searchable.
Source Document Attachment
Attach invoices, receipts, meter readings, supplier statements, and other source documents directly to data entries. Support for PDF, image, and spreadsheet formats. Each data point links to its supporting evidence for end-to-end traceability.
Methodology Documentation
Record and attach methodology decisions—emission factor selections, calculation method choices, estimation approaches, and boundary definitions—to the relevant data context. When auditors ask 'why?', the documentation is already in place.
Approval Workflow Engine
Configure multi-level approval workflows for data entry, corrections, and submissions. Facility-level review, manager approval, and executive sign-off—each step timestamped and recorded. Customise workflows per data type or organisational level.
Change Log and Version Control
Track every modification to emissions data with before/after comparisons, change reasons, and approver records. View the complete version history of any data point. Understand what changed, when, why, and who authorised it.
Audit Pack Generator
Generate comprehensive audit packs organised by scope, facility, reporting period, or framework. Include data summaries, source evidence, methodology documentation, approval records, and change logs. Export as PDF or structured data packages for assurance providers.
Chain of Custody Tracking
Trace the complete journey of any emissions data point from source document through data entry, calculation, validation, approval, and final reporting. Demonstrate unbroken chain of custody for every figure in your climate disclosures.
Data Quality Dashboard
Monitor evidence completeness across your emissions inventory. Identify data points missing source documents, unapproved entries, or undocumented methodology decisions. Prioritise evidence gaps before assurance engagements begin.
Real Results from Real Users
See how companies are transforming their sustainability reporting
"When our assurance provider arrived, we generated the audit pack in 20 minutes. They said it was the most organised evidence set they'd seen from a mid-size organisation. The automatic activity logging means we never have to reconstruct what happened or why—it's all captured as we work."
- Audit pack generated in 20 minutes
- Assurance engagement completed in half the estimated time
- Zero material findings in first external assurance
"The CER requested supporting documentation for our NGER submission with two weeks' notice. Previously, that would have been a panic. With NetNada, we exported a comprehensive evidence package in an afternoon. Every data point traced back to source documents, every methodology decision documented in context."
- CER documentation request fulfilled in one afternoon
- Complete source evidence for every NGER data point
- No follow-up queries from the Clean Energy Regulator
"The approval workflows give our audit committee confidence that emissions data goes through the same governance rigour as financial data. Facility managers enter data, sustainability leads validate, and I approve final submissions. Every step is documented. When our board asks about data quality controls, I have concrete evidence to show them."
- Three-tier approval workflow implemented across all data
- Board audit committee satisfied with data governance controls
- Staff turnover had zero impact on data continuity
Frequently Asked Questions
Everything you need to know about Audit Trail & Evidence Management
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Every Figure Substantiated, Every Decision Documented
As climate disclosure moves to mandatory assurance, the quality of your evidence matters as much as the accuracy of your numbers. NetNada captures a complete audit trail automatically, links source documents to every data point, and generates audit packs that satisfy external assurance providers, regulators, and your board.