When a shipping route closes unexpectedly, most operations teams discover their gaps in the wrong order. Inventory coverage is checked after the shortage lands. Alternative suppliers are called after the shortage lands. Finance gets the freight repricing conversation after the invoice arrives. The decisions that should have been made in hours one through four get made in weeks five through eight.
Protocol definition
The supply chain contingency decision protocol is a sequenced five-decision framework for operations leaders responding to geopolitical disruption. It assigns specific owners, numeric thresholds, and time windows to five decisions that most organisations make in the wrong order: exposure mapping (4-hour window), supplier qualification, inventory coverage (60-day trigger), freight cost ceiling (12%), and vertical integration review (90-day trigger).
From the work
Written from 5+ manufacturing and distribution engagements, 2022–2026, where supply chain disruption response and operations continuity planning were observed firsthand.
The 2026 Strait of Hormuz closure has made this framework urgent today. At the time of writing (May 2026), US-Iran talks remain deadlocked as of May 22 — Iran's $2M-per-vessel toll was flatly rejected, no recovery timeline confirmed — and DHL is forecasting 4–6 months to normalisation. Verify these details against current sources; the situation continues to evolve. The framework below applies to any geopolitical route disruption — the Suez blockage, Taiwan Strait tensions affecting semiconductor logistics, or any future corridor closure — regardless of how the current Hormuz situation has resolved by the time you read this.
What follows is one approach to sequencing these decisions, drawing on supply chain resilience principles developed by Yossi Sheffi at MIT and ASCM risk management practice. The thresholds — 60-day inventory coverage, 12% freight cost increase, 90-day duration trigger — are practical starting points. Calibrate them to your organisation's risk tolerance, supplier relationships, and financial position before using them.
The sequencing problem that breaks contingency plans
Yossi Sheffi's research at MIT's Center for Transportation and Logistics established a foundational principle that most operations teams know but don't operationalise: a company's resilience depends more on what it does before a disruption than on actions taken during one. The organisations that recovered fastest from major supply chain disruptions — he studied Nokia, Toyota, UPS, and others — had pre-defined response structures. They knew who owned each decision category. They had pre-qualified alternatives in critical supply categories. They had pre-approved capital thresholds for emergency inventory builds.
The organisations that struggled were not less capable. They were less prepared. When the disruption arrived, they started from scratch: assembling information, identifying owners, escalating for approval, and negotiating alternatives simultaneously — under time pressure, with incomplete data, and no pre-approved decision framework to reference.
That is the sequencing problem. The decisions below are not new. Every supply chain leader knows they need to check inventory coverage, qualify alternative suppliers, and run freight unit economics. The question is whether you have a protocol that assigns ownership and thresholds for each of them — and whether that protocol was designed before the current crisis, not during it.
The exposure problem most manufacturers haven't solved
Before any of the five decisions can be made well, there is a prerequisite that most mid-market procurement teams have not completed: mapping their Tier 2 and Tier 3 supplier exposure to the disrupted corridor.
Most ERP vendor masters contain Tier 1 supplier data. Very few contain the geographic sourcing picture below Tier 1. The shortage that surprises a manufacturer doesn't typically come from a direct supplier going dark — it comes from their supplier's supplier, sourcing polyethylene packaging, pharmaceutical APIs, agricultural chemicals, or battery components through the same disrupted corridor. That exposure is invisible until the shortage has already propagated.
Moody's noted in May 2026 that "shortages could emerge relatively quickly if disruptions persist." For the Hormuz corridor specifically, 85% of Middle East polyethylene production transits the strait — packaging material used by manufacturers across sectors that have no direct energy industry exposure. The same is true for a significant share of fertiliser, pharmaceutical, and electronics inputs.
If you cannot assess Gulf-corridor exposure for your top 20 input categories right now, that is the prerequisite task — before any of the five decisions below can be made with accurate information.
The 5-decision protocol — one approach
Each decision below has a trigger, a named owner, a deadline, and an escalation path. This is intended as a protocol — not a checklist. The difference is accountability: a checklist can be completed and filed; a protocol has named owners who are responsible for the outcome, not just the process.
These thresholds and ownership structures are starting points drawn from supply chain risk management practice. They are not universal standards. Some organisations will need tighter thresholds; others have capital structures or supplier portfolios that warrant different triggers. The goal is to have a version of this defined before you need it, not to adopt it unchanged.
Produce a list of every input category with Gulf-corridor dependency. Include Tier 1 supplier name and their known sourcing geography. If you don't have Tier 2/3 visibility, document that gap — unknown exposure is still exposure, and it needs a named owner to close it.
This task should have been completed at the onset of the disruption. If it has not been, the 4-hour deadline applies now.
With DHL forecasting 4–6 months to normalisation, beginning supplier qualification in week 8 means you have already absorbed the cost of weeks 1–7 unprotected. Emergency qualification is slower and more expensive than planned qualification — but it is the only option available now.
Do not wait for a Tier 1 supplier to signal distress before qualifying alternatives. By that point, every competitor in your sector is calling the same alternative suppliers simultaneously.
A 60-day coverage threshold is a common starting point in supply chain risk management when alternative routing adds 10–14 days to lead times (as Cape of Good Hope rerouting does during the current Hormuz closure). Below that level, you are in reactive mode with limited ability to switch sources before a shortage propagates.
Sixty days is a starting point — not an absolute standard. Your organisation's appropriate threshold depends on supplier qualification timelines, capital availability, and lead time variability. Any single inventory build decision exceeding $500K should have board visibility; this is a capital allocation decision, not a procurement decision.
Charter rates on the Strait of Hormuz rerouting lanes increased from approximately $37,000 to $177,000 per day — a 380% increase (Carra Globe, May 2026). This is not a temporary freight surcharge. For the duration of this disruption, it is a repricing of your freight model.
The 12% unit cost threshold is a starting point for triggering a Finance review — not a universal margin line. Where your customer contracts have freight cost clauses, this is the trigger to review them. Where they do not, the cost absorption question needs an explicit owner and a decision date before the invoice arrives.
McKinsey's research shows companies with strong supply chain operational control run 15–25% higher margins than those without. ASCM's 2026 survey found 83% of business leaders are already prioritising operational control over outsourcing — a trend accelerated by exactly the scenario playing out now.
A 90-day confirmed disruption with no alternative supplier qualified makes the risk-reduction value of insourcing a quantifiable line item in the capital case — not just a strategic aspiration. That is when a make-vs-buy analysis moves from premature to justified. The 90-day mark is the trigger; the board conversation should begin before it arrives.
How to adapt this protocol to your supply chain context
Framework provenance
The 5-decision structure above draws on supply chain resilience principles from Yossi Sheffi's work at MIT's Center for Transportation and Logistics — particularly the insight that resilience is built before disruptions, not during them. The ownership and escalation structure reflects ASCM supply chain risk management practice. The specific numeric thresholds (60 days, 12%, 90 days, $500K) are practical starting points assembled for this article — they are not authoritative standards from a single source. Use them as a starting point and calibrate to your organisation before adopting them. If you apply a different threshold and it works better for your context, that is the right answer.
Sources: Yossi Sheffi, The Resilient Enterprise (MIT Press, 2005); ASCM 2026 Supply Chain Trends; McKinsey supply chain margin research; Moody's Hormuz commentary (May 2026); DHL CEO normalisation forecast (May 2026); Carra Globe Hormuz shipping data (May 2026).
Frequently asked questions
What decisions should operations leaders make first during a supply chain disruption?
The sequencing matters as much as the decisions themselves. One structured approach: (1) map Tier 1–3 supplier exposure within 4 hours; (2) identify categories with no pre-qualified alternative and assign emergency qualification; (3) check inventory coverage against a 60-day threshold and escalate to COO and CFO jointly if coverage falls short; (4) run freight unit economics when rerouting increases unit cost above 12%; (5) set a formal vertical integration feasibility trigger if disruption extends past 90 days. Each decision has a named owner and an escalation path — the framework only works if accountability is assigned before the disruption, not during it.
How do you map Tier 2 and Tier 3 supplier exposure to geopolitical risk?
Most procurement teams maintain Tier 1 supplier records in their ERP vendor master. Tier 2 and Tier 3 exposure requires active mapping: asking Tier 1 suppliers for their sourcing geography by input category, then cross-referencing against known disruption corridors. For the Strait of Hormuz, the categories most likely to carry hidden Tier 2/3 exposure include polyethylene packaging (85% of Middle East production transits Hormuz), pharmaceutical APIs, agricultural chemicals, and certain electronics components.
What is a reasonable inventory coverage threshold during a geopolitical supply chain crisis?
Sixty days of coverage is a common starting point in supply chain risk management practice, particularly when alternative routing adds 10–14 days to lead times (as Cape of Good Hope rerouting does during Hormuz closure). Below 60 days, organisations are in reactive mode with limited ability to switch suppliers before a shortage lands. The appropriate threshold depends on your specific lead times, supplier qualification timelines, and capital availability — 60 days is a starting point, not an absolute standard.
When does a supply chain disruption justify a vertical integration feasibility review?
A 90-day confirmed disruption with no alternative supplier qualified in a critical input category is a reasonable trigger for a formal make-vs-buy analysis. McKinsey data shows supply-chain-controlling companies run 15–25% higher margins; ASCM's 2026 survey found 83% of business leaders are already prioritising operational control over outsourcing. A 90-day disruption makes the risk-reduction value of insourcing a quantifiable line item in the capital case.
The infrastructure question underneath the protocol
A protocol like the one above is an operational design decision, not a software decision. It can be run in a spreadsheet, in a team meeting, or on a whiteboard. The value is in having the decision ownership pre-assigned and the thresholds pre-agreed — so that when the 9pm Friday alert fires and inventory coverage for a critical input has dropped below 60 days, the right person receives it with the right context and has a pre-approved path to act.
The technology question is what happens to that approval at scale — across multiple sites, multiple decision categories, and at volume. That is the decision infrastructure problem: named owners with response SLAs, context-rich approval interfaces, and a direct connection from an approved decision to ERP execution. It is the layer that turns a protocol from a document into an operational system.
OpsGrid — IntelliConnectQ's decision infrastructure layer for Dynamics 365 Business Central, currently in live beta — has geopolitical disruption scenario planning on its product roadmap. If that capability is relevant to your planning, start a conversation with us.