SKU Contribution Profit: Which Products Deserve More Spend

First separate whether this SKU earns directly from whether it attaches to or displaces another SKU; without evidence for the same unit, window, and denominator, a role label cannot become a scale conclusion.

Sample, lifecycle, and confidence

Write whether the line is new, proven, aging, or in clean-up; retain SKU/variant, market, price or offer, order window, diagnostic sample size, and mature-return window together.

The latest 20 orders are a diagnostic starting point for finding missing fields, not a universal scale threshold. If a critical field, return maturity, or observation window is incomplete, keep C-tier observation and name the evidence owner and review point.

Operating role in the portfolio

Alongside A/B/C/D, mark whether it is a hero, profit, traffic or entry item, add-on, bundle component, or clean-up line; write whether it serves first purchase, repeat purchase, or another SKU’s sale.

A high-margin, low-volume SKU can remain a protected profit or add-on resource rather than being forced into hero placement; a traffic or entry role also does not authorize unlimited first-order loss or added budget.

Attach and cannibalization check

For entry SKUs, add-ons, and bundles, record eligible orders, attached SKU, attach-rate denominator, net contribution after discount, parcel, and partial return, plus the comparison with full-price singles or the prior route.

One order cannot become two new orders for both the entry SKU and the add-on. Without a same-scope comparison or reviewable substitution relationship, record a possible attachment rather than claiming incremental profit.

Return, repeat, and unit quality

Split new versus repeat customers and SKU versus bundle lines for refunds, reships, reasons, repeat window, and support exceptions; do not merge immature new-product orders, mature refund rate, and bundle returns into one rate.

A change in refund reason or repeat quality can overturn a hero decision; after a new market, offer, or revision, return to observation until evidence is reviewable for the same unit and window.

Inventory, supply, and stage boundary

Write sellable inventory, coverage versus lead time, replenishment payment, seasonal, end-of-life, or supplier state, and whether a bundle will exhaust another high-profit accessory first.

High stock does not automatically mean scale, and short stock does not invalidate profit; they change the permitted surface, budget step, replenishment, or clean-up route. Actual purchasing, inventory allocation, and budget still need owner confirmation.

Four routes, not one total score

Read direct contribution quality beside evidence maturity: high contribution with sufficient evidence, high contribution with insufficient evidence, low direct contribution with reviewable attachment, or low direct contribution with insufficient evidence. Put the role label beside this two-axis record.

Only the first route becomes a controlled hero candidate; the second and fourth complete evidence or stop loss; the third runs a controlled entry or add-on check. The scorecard finds weak points but cannot replace this two-axis judgment or approve an action.

This control line limits the scorecard in this lesson: it can expose a weak area, but it cannot prove attachment, cannibalization, repeat purchase, or incrementality, and it cannot approve a budget, inventory, or product change for an owner.

Use the organizer and tumbler above to calibrate what each score means. Every point for profit, ads, refunds, inventory, and cash should come from the same SKU and observation window. Do not substitute sales, overall ROAS, or an attractive gross margin for any of those fields. They can explain context, but they cannot replace SKU contribution and risk evidence.

After getting a score, translate it into a record before translating it into budget. Write the SKU denominator, verified fields, estimated fields, current-versus-affordable CPA variance, inventory-cover versus lead-time variance, owner, and next review. If a critical field is missing, even a high score means evidence completion first. If variance is negative or stock is short, route to observe or maintain instead of searching for a reason to make the score higher.

Add role, lifecycle, and attachment or substitution to that record: an eight-point new entry SKU is still not authorized for hero placement when mature returns, the attach denominator, or displaced full-price orders remain unclear.

This route selector feeds back the first move and blocked move for the case. When the route is entry, add-on, or bundle, still write the attach denominator, substitution relationship, mature returns, and inventory tie-up into the same SKU record before the next review.

Put this question back into the TMB-20-BLK boundary. Sales rank one does not erase the $17 - $14 = $3 CPA overrun or the 21 - 18 = 3-day stock shortfall. The question is not asking you to memorize C-tier observation. It asks which evidence could overturn the conclusion and which owners must stop which moves until that evidence appears.

Whatever the selection, do not leave the result inside this check. The merchandising owner records leak and reshipment reasons for the next 20 orders. The media owner freezes added budget and hero product-set placement. The inventory owner confirms inbound arrival and cash timing. Discuss hero recovery only when CPA returns inside the store’s boundary, cover is no longer shorter than lead time, and refund reasons have a reviewable explanation.

The self-check answer, score, and copied note explain the lesson’s decision path only; they cannot confirm attribution, attachment or cannibalization, returns, inventory, suppliers, budget authority, or ad-system configuration for real orders.