Before selling your business, try completing this sentence: “If this supplier stopped delivering, we could keep making this product until ___.” Then write down what would have to happen before production could continue. The blank is the starting point for this guide’s supplier continuity exercise.
BDC’s acquisition due-diligence guidance includes supplier concentration and the ability to change key-input suppliers without major disruption. That makes continuity a useful sale-preparation question. It does not tell you what every buyer will require or how the answer will affect your price.
We will work through a fictional display-stand business, compare two replacement deliveries and build a preparation record. The exercise measures production under stated assumptions. It cannot certify a supplier or predict a transaction outcome.
What’s In this Issue?
Map the dependency
Establish the starting stock
Compare two fictional deliveries
Test one possible response
Prepare the evidence record
Map the input to the work it enables
EDC’s supply-chain guidance recommends mapping supplier tiers, geography, transport, lead times and inventory. For this exercise, connect the input to the activity it enables. Record any known shared upstream source or transport route; leave unknown relationships explicitly unknown.
Business Queensland’s operating guidance describes business-impact analysis through key activities, required resources and the consequences of disruption. This is general operating context from Australia, not a Canadian legal standard.
In our invented business, each display stand needs one mounting component. Without that component, the stand cannot be assembled. We assume every other part is available and the team has enough time and equipment. That isolates the question: how many stands can this particular component supply support?
Draw the example as a short chain: supplier → mounting component → assembled stand. The arrow represents a dependency we have stipulated. We have not assigned the component a purchase price, ranked it against other spending or estimated the business’s value. None of those figures is needed to calculate this production gap.
Establish the stock you are counting
BDC’s inventory-monitoring guidance recommends consistent units, records of quantities and locations, and physical checks against those records. A count establishes quantity; it does not by itself establish suitability for a particular job. Ask operations to state which units this exercise can use and the checks behind that statement.
Our fictional starting point is 240 usable components at the start of operating day 1. We assume they are present, suitable and available for these stands. Planned assembly is 20 stands per operating day, consuming one component per stand. Opening coverage is therefore 240 ÷ 20 = 12 operating days.
Keep the units consistent as you follow the calculation: components on hand, components consumed per stand, and stands assembled per operating day. We are counting operating days, so day 16 does not mean 16 calendar days from today. There is no calendar, weekend or holiday conversion in this example.
Separate the alternative’s evidence
BDC’s supplier-diversification article recommends checking quality and volume capability, testing samples and small orders, and allowing for production adaptations. Record what has been quoted, what testing showed, the quantity offered and the first expected usable date. These are explanatory distinctions, not universal certification stages. A sample result does not establish every later batch’s performance.
The next two scenarios give those dates different meanings. Both begin with the same 240 components and the same plan to assemble 20 stands a day. All arrivals and permissions to use a batch occur before that day’s work. Testing consumes no components. There is no scrap, extra demand, catch-up production or further delivery from the original supplier.
Scenario A: replacement components become usable on day 16
Assume an already qualified alternative delivers 200 usable components at the start of day 16. “Qualified” and “usable on arrival” are facts of this fictional setup, not conclusions about a real supplier.
After day 1, the opening stock falls from 240 to 220. After day 2, it is 200. The same daily use continues until day 12 consumes the final 20. Nothing remains for day 13. Delivery arrives before work on day 16, so days 13, 14 and 15 are the interruption.
Three operating days × 20 planned stands = 60 stands not assembled to plan. On day 16, the business receives 200 components, assembles 20 stands and finishes with 180 components. The delivery supports ten operating days at this rate, from day 16 through day 25 inclusive.
Through day 18, the business has assembled 300 stands: 240 during the first twelve days and another 60 on days 16–18. Its uninterrupted plan would have produced 360 over eighteen operating days. The difference is the same 60-unit gap. Checking the total this way confirms that the resumed production has not silently erased the interruption.
Scenario B: arrival on day 10, usable on day 18
Now assume the alternative’s 200 components arrive at the start of day 10, but this fictional business’s test plan prevents their use until the start of day 18. The batch stays separate and contributes nothing to assembly during days 10–17. That timing is an invented assumption, not a recommended or typical testing period.
At the start of day 10, 60 original components remain. They support days 10, 11 and 12. The newly arrived batch is physically present, but under the stated restriction it cannot replace those components. When the original stock runs out, production waits through days 13, 14, 15, 16 and 17.
Five operating days × 20 planned stands = 100 stands not assembled to plan. Work resumes on day 18, using 20 of the newly usable components and leaving 180. Through day 18, the business has assembled 260 stands against the same 360-unit plan. Again, the total confirms the gap.
The second delivery arrived six operating days earlier than A’s, yet production resumed two days later. In these scenarios, substituting the receipt date for the first usable date would give the wrong answer. B’s 200-unit batch supports ten operating days from day 18 through day 27. Neither scenario establishes another delivery after its replacement batch is consumed.
These are production comparisons. We have not specified finished stands already in storage, customer delivery promises, later catch-up work or customer behaviour. We therefore cannot translate either gap into lost sales, revenue, profit or a valuation discount.
Test a response without calling it the answer
Return to A and change just one input: start with 300 usable components. At 20 per operating day, they cover fifteen days. The unchanged delivery at the start of day 16 then follows without a production gap. The additional 60 components bridge exactly the three days missing in A.
That calculation establishes a physical bridge in this model. It does not establish whether obtaining the extra stock is affordable or sensible. We have supplied no purchase cost, storage limit, shelf life, cash constraint or uncertainty in the day-16 arrival. Those omissions prevent an economic recommendation.
BDC cautions that diversification can add costs or lead time, and alternative suppliers may lack capacity at short notice. Ask what must be established before relying on the proposed alternative.
Business Queensland also lists possible responses such as alternative packaging, shifting sales towards other product lines and seeking another supplier. These are options to investigate for feasibility, not permission to substitute materials or a reason to assume another product can absorb the lost output.
Prepare one supplier continuity record
Use these fields for an adviser discussion. They organize the evidence behind the exercise; completing them does not prove continuity.
Dependency. Name the input, affected output and known upstream or transport links. This explains what is interrupted. Mark unknown links rather than guessing.
Stock basis. Record the item, units, location, count date and operations’ stated usable quantity. Identify the checks or exclusions behind it. This makes the starting number open to challenge.
Alternative evidence. Separate quoted quantity and timing from test results and the first expected usable date. Name the person providing each answer. This shows which parts of the proposed response remain assumptions.
Scenario and next check. State the interruption being tested, affected activity, result and unresolved action. Identify who will investigate it. Keep that action attached to the operating consequence it addresses.
For B, the filled calculation line reads: “240 opening usable components; 20 consumed per operating day; 200 received on day 10 but unavailable until day 18; five missed assembly days, totalling 100 stands.” The next question is specific: who will confirm or revise the assumed day-18 usability, and on what evidence?
EDC discusses monitoring inventory, delivery and lead-time measures. Update the record when its underlying evidence changes; retain the date and assumptions of the earlier comparison so the revision can be explained.
If B’s first usable date changes, recalculate from that date. Keep the former result alongside the new one and identify the changed input. The useful conclusion is a traceable explanation of what the business can do under stated conditions, with the unanswered question still visible.
For general information and education, not legal, tax, investment or valuation advice. Examples are fictional and do not predict your business’s value, financing terms or sale outcome. Consult qualified advisers about your situation.
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