A multi-outlet group often reviews suppliers by what it spends with them. That view is useful for negotiation, but it says little about what would stop service. Two distributors can depend on the same producer, and a low-cost item can be the one thing a whole service cannot run without.
This guide maps common dependencies across apparently separate suppliers and outlets, records the evidence and gaps behind each claim, and tests one disruption on paper. The original fictional example shows why a supplier list alone is not enough to establish continuity.
Map each item from use back to source
Give each dependency a stable ID. Start from the use: the item and its approved specification, the activity that needs it and the outlet IDs where it is used. Then record the direct supplier, and what is known further back, such as the producer, plant, packer, transport hub, utility or region the route relies on.
For every upstream claim, record its source, the date it was stated and how confident you are, described in words. A supplier's email last month is different evidence from a site document checked this week. Write unknowns down as unknown.
Worked example: one coffee, two distributors
In this fictional example, outlets O1, O2 and O3 buy the same approved coffee. O1 and O2 order through distributor D-A and O3 through D-B, which looks like two independent supply routes. Supplier evidence shows that both distributors currently source that specified coffee from producer P-X. The group records this as DEP-01, a shared dependency that covers all three outlets.
Two distributor names do not establish two independent production routes. If P-X could not supply the specified coffee, both distributors could be affected at once. Retain the date and source of that evidence, because sourcing arrangements can change; a producer name alone may still leave the actual plant or logistics route unknown.
| Fictional ID | Item and use | Outlets | Direct supplier | Shared dependency or constraint | Evidence status |
|---|---|---|---|---|---|
| DEP-01 | Approved coffee, coffee beverages | O1, O2, O3 | D-A (O1, O2); D-B (O3) | Both currently source from producer P-X | Fictional supplier statements; record actual source, date and recheck |
| DEP-02 | Approved takeaway lid, takeaway service | O1, O2 | D-C | Approved lid required for the specified takeaway cup | Proposed backup cup does not fit the approved lid |
| ALT-01 | Proposed coffee from P-Y | None yet | To be confirmed | Site, plant and route not yet identified | Unverified; not ready |
Small items can stop a whole service
DEP-02 is a lid supplied by D-C. Its cost is minor, yet the specified takeaway drinks at O1 and O2 need the approved cup-and-lid pairing. A proposed backup cup does not fit the approved lid, so it cannot be described as ready. Record that known mismatch separately from unanswered sourcing questions.
Outlets appear in more than one row. O1 and O2 sit under both DEP-01 and DEP-02, so adding the outlet lists together would claim five exposed outlets when there are three. Count unique outlet IDs directly if you need that figure.
Unknown is not independent
When a supplier cannot say where an item comes from, the honest entry is unknown. Treating a gap as proof of independence makes the map look safer than the evidence allows.
Even different producers may share a packing site, port, transport hub, utility or growing region. State exactly which dependencies were checked, what evidence supports separation and what remains unknown. A claim of no identified shared dependency within that scope is more limited than a guarantee that the routes are independent.
Check an alternative before calling it ready
In the example a coffee from producer P-Y is proposed. It stays recorded as ALT-01, separate from DEP-01 and marked unverified, until the producer and site identity, the match to the approved specification, the capacity available in the relevant window, the logistics route and the authorisation to use it have each been checked.
Readiness is a recorded set of conditions with evidence, not a count of supplier names. Purchasing, receiving and food or menu approval controls still apply to any alternative.
Run one bounded disruption exercise
Choose one dependency and one window, for example DEP-01 unavailable for a stated period. List the activities affected at each outlet, the stock and arrivals confirmed by evidence, and the constraints that apply. Do not calculate days of cover unless the scope, safe usable stock and demand have each been established separately.
Record the authorised fallback. It may be a restricted service, such as a shorter beverage menu, rather than an unapproved substitute. Name the owner, the decision taken and the date to recheck. The exercise shows where the map is thin; it does not certify continuity, remove risk or recommend stockpiling.
What the supply-chain guidance supports
Business Queensland's guidance on managing risk in supply chains describes identifying the parties in a chain, including producers, packaging and logistics, separating what is within your control, assessing how disruptions would affect key activities and preparing alternative sources in advance. This guide uses only those general principles. Australian legal guidance and the linked template are not applied.
Put it into practice
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From reading to doing
Supplier dependency map and disruption exercise
The Supplier Dependencies worksheet is a manual record. It holds scope, version and owner; a register of stable dependency IDs linking each item, specification and use and the affected outlet IDs to direct suppliers and upstream or logistics dependencies, with evidence, as-of dates and unknowns; alternative-route readiness with approval evidence and conditions; one bounded disruption exercise covering the window, affected activities, confirmed stock and arrival evidence, constraints, authorised fallback, owner, decision and recheck date; and change and review actions. It calculates nothing and gives no score, ranking, probability, forecast or approval.
Open the Supplier Dependencies tab in the launch workbook. Keep a copy for your own business.
Download the free workbook See what’s inside the toolkit →Sources & further reading
- Managing risk in supply chains (Business Queensland, Queensland Government) ↗
Page updated 24 November 2022, retrieved 7 November 2026. Used only for general principles of mapping a supply chain including producers, packaging and logistics, separating controllable from uncontrollable risks, assessing disruption impact on key activities and preparing alternative sources. Australian legal guidance, the business continuity template and its structure are not applied. All examples and the worksheet are original.
Published by Keystonne Grow. Product links connect to the Keystonne ecosystem; check the linked product or service for its current scope.
