eightytwentyplus
← All lessons
Dependency15-minute lessonNo sign-in needed

How dependent are you?

Dependency measures reliance between customers and products. It is distinct from simply identifying the largest customer or product.

Imagine this business

If 85% of a product’s recorded revenue comes from one customer, that product is closely tied to the relationship. The existing platform uses a transparent 70% threshold to surface these cases.

Consider both directions

The proportion of a product sold to one customer can differ greatly from that customer’s proportion spent on the product.

Treat the threshold as a flag

The platform’s 70% threshold surfaces reliance for investigation, not a prediction of failure.

Two situations. Different implications.

Illustrative comparison — not actual customer data or a platform-calculated result.

MeasureProduct AProduct B
Basis$200k revenue$200k revenue
What's different?One customer purchases $180k (90%)Largest customer purchases $30k (15%)

Product A has greater customer-specific reliance despite the same revenue. A's 90% crosses the platform's 70% evidence threshold; that is a flag, not a judgement.

Team discussion: Sales and Product teams can review demand continuity and alternative relationships.

Compare before you conclude

Compare a product's share sold to its largest customer with that customer's share spent on the product; these are different denominators.

Who could act on this?

Teams: Sales and Product Management.

Sales manages relationship concentration; Product Management assesses exposure of individual SKUs.

Ideas worth testing

Develop account continuity plans, identify replacement demand and review supplier/product alternatives.

Watch the trade-offs

The 70% flag indicates reliance, not that the relationship is unsafe.

Now ask a better question

Try this in your own words

What happens to this product if the relationship changes, and is the dependence deliberate?

What should I consider?

Identify what the numbers establish, what they do not establish, and which additional evidence you need before acting. Make a note of one question to investigate.

Try this with your own data

Where to look in your diagnostic

Dependency

Data needed: Customer ID + Product ID + Revenue.

What to investigate: Review reliance between counterparts in both directions and the transparent 70% evidence threshold.

Open the sample or run the free diagnostic, then find the named dashboard section. Sections appear only when your data supports them; some deeper investigation and exports require Professional access. Check Evidence & Coverage before drawing conclusions.

Explore the sampleUse my own data
Key principle

Numbers provide evidence. Good decisions require context and judgement. Treat this lesson as a starting point for investigation, not an instruction to change your business.

Keep exploring

Next lesson: Which relationships deserve investigation? →

Browse all 12 lessons