Ready to turn insight into action?
We help organisations transform ideas into measurable results with strategies that work in the real world. Let’s talk about how we can solve your most complex supply chain challenges.
Most M&A transactions include financial due diligence, legal due diligence, and some form of commercial due diligence. Operational due diligence — and supply chain due diligence specifically — is often the weakest element. It gets compressed, delegated to generalists, or skipped entirely in favour of faster close timelines.
The consequences show up after completion. Margin erosion from supply chain costs that weren't visible in normalised EBITDA. Supplier concentration risks that weren't disclosed. Technology dependencies that complicate integration. Inventory positions that turn out to be worth materially less than the balance sheet suggests.
This article sets out what supply chain due diligence should cover in Australian M&A transactions — and how to avoid the most common blind spots.
Why Supply Chain Risk Is Underweighted in M&A
There are structural reasons why supply chain due diligence tends to be inadequate.
Financial due diligence teams work from financial statements and management accounts. Supply chain costs are embedded across multiple line items — cost of goods sold, logistics, warehousing, write-offs, freight — and the drivers of those costs are operational, not financial. A financial due diligence team can see the numbers but rarely has the operational context to understand whether they are sustainable.
Vendor management typically presents supply chain operations in the most favourable light possible. Supplier relationships are described as robust. Inventory is described as well-managed. Technology is described as fit for purpose. Critically, the things that are genuinely fragile — a key supplier that is also a significant customer of the target, a 3PL relationship that is barely functional, an ERP that the business has outgrown — may not surface at all without targeted operational questioning.
Finally, deal timelines create pressure. When a transaction is moving fast, diligence workstreams get compressed and the supply chain workstream — perceived as lower priority than financial and legal — bears the brunt.
The result is that acquirers regularly close transactions without a clear picture of the supply chain they're inheriting.
What Supply Chain Due Diligence Should Cover
Thorough supply chain due diligence has seven components.
Supply base analysis. Who does the target buy from, in what volumes, under what contractual arrangements, and at what pricing? The focus here is on concentration risk — how dependent is the business on a small number of suppliers for critical inputs? What is the financial health of key suppliers? Are there single-source situations where no credible alternative exists? Are contracts in place, or is the business operating on informal arrangements that could unravel post-acquisition?
Australian supply chains have particular concentration risks worth probing. Offshore sourcing from China or Southeast Asia can represent a large share of input costs in manufacturing, retail, and FMCG businesses. Where that exposure is significant, the due diligence should assess freight cost sensitivity, lead time variability, minimum order quantity constraints, and what happens to pricing if the AUD weakens or if tariff structures shift — as they have materially in 2024–25.
Inventory quality. The inventory on the balance sheet is a claim on future revenue. Due diligence should test that claim by assessing: the age profile of inventory (what proportion is slow-moving or aged), the accuracy of inventory records (is the count reconciled and reliable?), the write-down policy (is it consistent with industry practice or has it been applied conservatively to inflate asset values?), and the working capital implications of the inventory cycle for an acquirer operating at different scale or with different financial discipline.
For businesses with significant finished goods inventory — retail, FMCG, manufacturing — inventory quality analysis can materially affect transaction value.
Logistics and warehousing. How does the target move and store product? What are the contractual arrangements with 3PLs, transport providers, and warehouse operators? Are there change-of-control clauses in logistics contracts that would allow providers to exit or renegotiate on acquisition? What is the state of the warehousing infrastructure — owned, leased, or third-party — and does it have the capacity to support the acquirer's post-acquisition volume plans?
For transactions involving an acquirer with an existing logistics network, this analysis is directly relevant to synergy quantification: are there genuine consolidation opportunities, or would integration create more disruption than value?
Technology and systems. Supply chain systems are frequently the most underestimated integration challenge in M&A. The target may be running an ERP that is heavily customised, end-of-life, or incompatible with the acquirer's systems. Warehouse management, demand planning, and transport management systems add further complexity. Due diligence should map the technology landscape, assess the cost and timeline of integration, and identify any data dependencies that could create problems during transition.
In Australian transactions, it is common to find mid-market targets running supply chain operations on a patchwork of legacy ERP, spreadsheets, and manual processes. This isn't necessarily a deal-breaker — but it does affect integration cost and timeline assumptions.
Supply chain cost structure. What is the true cost of supply chain operations — not as reported in the management accounts, but on a fully loaded basis including freight, warehousing, inventory carrying cost, shrinkage and write-offs, and the overhead embedded in procurement and operations functions? How does this compare to industry benchmarks? Are there identifiable inefficiencies that represent upside for an acquirer, or are there cost pressures that will emerge post-close?
This analysis requires access to operational data and an ability to interpret it in the context of the target's business model — not just read the financial statements.
Workforce and capability. Supply chain capability is often concentrated in a small number of key individuals — a logistics manager who holds all the carrier relationships, a planning analyst who is the only person who understands the forecasting model, a procurement manager whose personal relationships maintain supplier terms. Due diligence should identify these dependencies and assess retention risk, particularly if the transaction involves structural change or leadership replacement.
Regulatory and compliance. Australian supply chain compliance obligations are increasing. Modern slavery reporting under the Modern Slavery Act 2018 requires entities with annual consolidated revenue above $100 million to report on supply chain risks. Climate disclosure requirements under Treasury Laws Amendment (Financial Market Infrastructure and Other Measures) Act 2024 are expanding. For targets with offshore supply chains, labour and environmental compliance in source countries is a growing diligence focus for institutional acquirers. These obligations should be assessed and the cost of any remediation factored into valuation.
Post-Acquisition Integration Planning
Supply chain due diligence feeds directly into integration planning. The most effective approach is to develop a Day 1 readiness plan — what needs to be in place at close to maintain operational continuity — alongside a 100-day integration roadmap that sequences the consolidation of suppliers, systems, logistics, and teams.
Common integration pitfalls:
Over-ambitious synergy timelines. Supplier contract consolidation, logistics network rationalisation, and system migration all take longer than integration plans typically assume. Synergies that are modelled as Year 1 are frequently Year 2 or Year 3 realities.
Disruption to supplier relationships. Suppliers who have invested in relationships with target management may respond poorly to acquisition-driven changes in purchasing approach. Retention of key supplier relationships through transition is a legitimate integration risk.
Inventory depletion events. Integration activities — system cutover, logistics consolidation, supplier transitions — create windows of execution risk where inventory can be depleted, service levels can drop, and customer relationships can be damaged. Integration plans should be stress-tested against supply chain execution risk.
How Trace Consultants Can Help
Trace Consultants provides supply chain and operational due diligence support for Australian M&A transactions — working alongside financial and legal advisors to give deal teams a clear picture of the supply chain they're acquiring.
Supply chain due diligence: We assess supplier concentration, inventory quality, logistics arrangements, technology landscape, cost structure, and workforce dependencies — producing a diligence report that identifies material risks and quantifies their impact on value and integration cost.
Integration planning: We develop Day 1 readiness plans and 100-day integration roadmaps that sequence supply chain consolidation without disrupting operational continuity.
Synergy quantification: We model supply chain synergy opportunities on a realistic timeline — separating achievable near-term savings from longer-horizon consolidation benefits that require structural change.
Explore our Strategy & Network Design services →Explore our Procurement services →Speak to an expert at Trace →
Ready to turn insight into action?
We help organisations transform ideas into measurable results with strategies that work in the real world. Let’s talk about how we can solve your most complex supply chain challenges.







