Where to get dead stock markdown data

Last updated: 2026-07-31

Written and reviewed by Seller Profit Guard Editorial Team.

Use inventory aging for receipt-date and age buckets, inventory reports for on-hand units and sell-through context, catalog or price history for the active price, cost systems for one unit-cost basis, payout rules for fees, fulfillment records for sold-unit costs, and documented liquidation or disposal evidence for residual recovery.

markdown source map from aged inventory and markdown inputs through expected recovery, review, and restoration — This original diagram explains field-level evidence lineage with synthetic inventory data.

Inventory aging source

Use receipt dates, age buckets, quantity, value, location, and condition from the controlled inventory report. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Resolve transfers and adjustments. At checkpoint 1, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

On-hand source

Reconcile sellable units to a dated count or perpetual ledger. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Exclude nonavailable classes. At checkpoint 2, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Unit-cost source

Use one approved landed, standard, or other declared operating basis. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Do not mix accounting methods. At checkpoint 3, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Price-history source

Record current and proposed price, currency, channel, tax display, start date, and event type. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Screenshot-free summaries need audit pointers. At checkpoint 4, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

markdown source map: price-history source — This original diagram makes field-level evidence lineage reviewable.

Sell-through source

Capture numerator, denominator, window, delay, availability, season, and promotions. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

System definitions differ. At checkpoint 5, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Fee source

Map percentage and fixed charges to the correct price base. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Verify current rules. At checkpoint 6, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Fulfillment source

Use packaging, pick-pack, outbound handling, and seller shipping at the sold-unit grain. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Exclude duplicated overhead. At checkpoint 7, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Storage source

Assign avoidable cost to the decision window with a documented key. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Do not reuse annual totals blindly. At checkpoint 8, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Disposal source

Use quotes, contracts, prior settlements, donation receipts, return rights, or destruction fees. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Recognize negative recovery when disposal costs money. At checkpoint 9, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

Evidence access source

Store protected pointers, owner, timestamp, permissions, and change history. The markdown source map records the exact source, definition, period, unit, currency, transformation, timestamp, owner, reviewer, exception, and prior accepted value needed for field-level evidence lineage.

Never copy secrets or raw buyer data. At checkpoint 10, reperform the affected Scenario A and Scenario B terms, identify the input that changes expected recovery, and state the operational, accounting, tax, policy, or privacy conclusion that remains outside the calculator.

markdown source map: evidence access source — This original diagram makes field-level evidence lineage reviewable.

Dead Stock Markdown Data Sources: population integrity control

Keep one SKU-location, condition state, availability rule, unit count, and cost basis. Control 1 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Mixed inventory blocks. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: probability lineage control

Record sell-through definition, window, price, season, placement, availability, and source delay. Control 2 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Unsupported probability requires Review. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: cost separation control

Map fees, fulfillment, storage, disposal, and cost basis once. Control 3 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Duplicate or missing cost blocks. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: three seller thresholds control

Compare expected recovery rate, cost-basis shortfall rate, and evidence days with three separately entered seller controls. Control 4 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

One passing threshold cannot override another. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: dated evidence governance control

Record a real source-review date and seller-policy effective date, with policy no later than the reviewed evidence. Control 5 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Impossible or reversed dates block. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: nine confirmations control

Confirm SKU-location grain, on-hand and cost basis, price and fees, sell-through, storage and fulfillment, residual recovery, condition, privacy, and accounting boundaries. Control 6 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Any missing confirmation blocks. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

markdown source map: dead stock markdown data sources: nine confirmations control — This original diagram makes field-level evidence lineage reviewable.

Dead Stock Markdown Data Sources: distinct scenarios control

Change at least one markdown, probability, selling cost, residual recovery, age, or evidence-window assumption between the two cases. Control 7 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

A copied scenario is not a comparison. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: output masking control

Mask derived money, rates, units, preference, and threshold gaps whenever structural validation returns Block. Control 8 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Never act on partial invalid arithmetic. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: decision boundary control

Separate scenario recovery from forecasting, accounting, tax, pricing authority, promotion setup, and disposal approval. Control 9 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Arithmetic cannot authorize action. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Dead Stock Markdown Data Sources: privacy and recovery control

Use aggregates, protect source rows, retain prior values, monitor variance, and preserve restoration. Control 10 defines a pass condition, evidence owner, independent reviewer, correction deadline, sensitivity range, monitoring signal, stop condition, and restoration trigger before the markdown source map can support field-level evidence lineage.

Public buyer or order data is prohibited. Apply the control to both synthetic fixtures while keeping inventory age, markdown price, expected units, selling costs, storage, disposal recovery, cost basis, recovery rate, and decision authority as separate concepts.

Inventory aging source: recovery lab 1

Recalculate the relevant output from both fixtures. Use receipt dates, age buckets, quantity, value, location, and condition from the controlled inventory report. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Resolve transfers and adjustments. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

On-hand source: recovery lab 2

Recalculate the relevant output from both fixtures. Reconcile sellable units to a dated count or perpetual ledger. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Exclude nonavailable classes. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Unit-cost source: recovery lab 3

Recalculate the relevant output from both fixtures. Use one approved landed, standard, or other declared operating basis. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Do not mix accounting methods. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Price-history source: recovery lab 4

Recalculate the relevant output from both fixtures. Record current and proposed price, currency, channel, tax display, start date, and event type. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Screenshot-free summaries need audit pointers. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Sell-through source: recovery lab 5

Recalculate the relevant output from both fixtures. Capture numerator, denominator, window, delay, availability, season, and promotions. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

System definitions differ. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Fee source: recovery lab 6

Recalculate the relevant output from both fixtures. Map percentage and fixed charges to the correct price base. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Verify current rules. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Fulfillment source: recovery lab 7

Recalculate the relevant output from both fixtures. Use packaging, pick-pack, outbound handling, and seller shipping at the sold-unit grain. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Exclude duplicated overhead. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Storage source: recovery lab 8

Recalculate the relevant output from both fixtures. Assign avoidable cost to the decision window with a documented key. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Do not reuse annual totals blindly. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Disposal source: recovery lab 9

Recalculate the relevant output from both fixtures. Use quotes, contracts, prior settlements, donation receipts, return rights, or destruction fees. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Recognize negative recovery when disposal costs money. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Evidence access source: recovery lab 10

Recalculate the relevant output from both fixtures. Store protected pointers, owner, timestamp, permissions, and change history. Change one input only, retain every other population and cost assumption, and record the new expected sold units, unsold units, net recovery, recovery rate, threshold headroom, and preferred scenario.

Never copy secrets or raw buyer data. Test a low and high case for sell-through, price, fee, fulfillment, storage, and disposal recovery. Explain when the preference crosses over and which protected evidence or approval would still be required before an inventory action.

Dead Stock Markdown Data Sources: intent-specific implementation walkthrough

markdown source map checkpoint 1 addresses inventory aging source as a distinct requirement for field-level evidence lineage. Use receipt dates, age buckets, quantity, value, location, and condition from the controlled inventory report. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Resolve transfers and adjustments.

markdown source map checkpoint 2 addresses on-hand source as a distinct requirement for field-level evidence lineage. Reconcile sellable units to a dated count or perpetual ledger. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Exclude nonavailable classes.

markdown source map checkpoint 3 addresses unit-cost source as a distinct requirement for field-level evidence lineage. Use one approved landed, standard, or other declared operating basis. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Do not mix accounting methods.

markdown source map checkpoint 4 addresses price-history source as a distinct requirement for field-level evidence lineage. Record current and proposed price, currency, channel, tax display, start date, and event type. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Screenshot-free summaries need audit pointers.

markdown source map checkpoint 5 addresses sell-through source as a distinct requirement for field-level evidence lineage. Capture numerator, denominator, window, delay, availability, season, and promotions. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. System definitions differ.

markdown source map checkpoint 6 addresses fee source as a distinct requirement for field-level evidence lineage. Map percentage and fixed charges to the correct price base. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Verify current rules.

markdown source map checkpoint 7 addresses fulfillment source as a distinct requirement for field-level evidence lineage. Use packaging, pick-pack, outbound handling, and seller shipping at the sold-unit grain. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Exclude duplicated overhead.

markdown source map checkpoint 8 addresses storage source as a distinct requirement for field-level evidence lineage. Assign avoidable cost to the decision window with a documented key. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Do not reuse annual totals blindly.

markdown source map checkpoint 9 addresses disposal source as a distinct requirement for field-level evidence lineage. Use quotes, contracts, prior settlements, donation receipts, return rights, or destruction fees. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Recognize negative recovery when disposal costs money.

markdown source map checkpoint 10 addresses evidence access source as a distinct requirement for field-level evidence lineage. Store protected pointers, owner, timestamp, permissions, and change history. Record the source decision, formula effect, failed alternative, reviewer question, correction owner, monitoring signal, and restoration value. Never copy secrets or raw buyer data.

Evidence boundary for field-level evidence lineage

The moderate fixture uses 100 units, USD 12 unit cost, USD 30 current price, a 30 percent markdown, 55 percent expected sell-through, 10 percent selling fees, USD 4 fulfillment per sold unit, USD 1.50 storage per on-hand unit, and USD 2 disposal recovery per unsold unit. Expected net recovery is USD 759.50, or 63.29 percent of cost basis. The clearance fixture uses the same inventory and cost basis, a 50 percent markdown, 90 percent expected sell-through, 10 percent selling fees, USD 4 fulfillment per sold unit, USD 0.25 storage per on-hand unit, and USD 2 disposal recovery per unsold unit. Expected net recovery is USD 850, or 70.83 percent of cost basis.

The enhanced packet also displays cost-basis shortfall rates of 36.71 and 29.17 percent, expected net recovery per opening unit of USD 7.60 and USD 8.50, and recovery-floor gaps of negative 6.71 and positive 0.83 percentage points. It can demonstrate entered arithmetic and sensitivity, but it cannot prove future demand, optimal price, incrementality, accounting value, tax treatment, cash timing, policy compliance, buyer response, disposal eligibility, or the correct business action.

Release, monitor, and restore the markdown source map

Block invalid or non-finite units, costs, prices, rates, dates, evidence, scope, currency, confirmations, duplicated scenarios, privacy, or conflicts, and mask every derived output. Review short evidence, very old inventory, negative sold-unit recovery, recovery below the seller floor, or shortfall above the seller ceiling. Ready clears only the three entered thresholds, nine confirmations, and the rest of the entered worksheet.

Before indexing or operational use, preserve evidence and rollback artifacts; run typecheck, unit, integration, build, content, similarity, SEO, image, link, mobile, strict-route, deployment, and live checks; then compare later evidence without claiming same-period causality.

Dead Stock Markdown Data Sources: concrete working record

The source map lists each input, authoritative system, report name, field, filter, location, date range, definition, currency, unit, transformation, reconciliation total, owner, reviewer, evidence timestamp, protected pointer, retention rule, exception, substitute source, and restoration value. It flags every source that is stale, estimated, unavailable, or incompatible.

Sources and further reading

Seller Profit Guard methodology: Evidence, formula, privacy, correction, release, monitoring, and rollback rules.
Seller Profit Guard data privacy: Local-first boundaries for inventory, supplier, customer, order, and raw export data.
Shopify Help: Product analytics overview: Official definitions for product sell-through, days of inventory remaining, and inventory value context.
Shopify Help: Inventory reports: Official reporting periods, month-end inventory snapshots, sell-through, ending quantity, and days-remaining boundaries.
Square Support: Run an aging inventory report: Official weighted age, last-received date, age bands, on-hand quantity, value, and location filters.
Microsoft Learn: Item Age Composition by Quantity and Value: Current official receipt-date aging report for on-hand quantity and value with item and location filters.
Oracle Retail: Markdown data requirements: Official treatment of permanent, clearance, and promotional markdown data.
Oracle Retail Markdown Optimization User Guide: Official lifecycle context for markdown timing, depth, profitability, and inventory targets.

Related Seller Profit Guard tools

Dead Stock Markdown Calculator: Compare moderate and clearance scenarios using expected net recovery and cost-basis recovery rate.
Inventory Carrying Cost Calculator: Estimate the annual holding burden separately from a markdown decision window.
Maximum Discount Calculator: Calculate a contribution-based discount ceiling for ordinary retained orders.
Contribution Margin Calculator: Measure retained order contribution separately from inventory disposition.
Methodology: Review evidence, formula, privacy, correction, release, and rollback.
Data Privacy: Protect inventory, supplier, customer, order, and raw export data.
Dead Stock Markdown Formula and Inputs: Define markdown price, sell-through probability, selling costs, storage, disposal recovery, cost basis, and expected net recovery.
Dead Stock Markdown Worked Example: Reperform a moderate markdown example from aged inventory through expected units, selling costs, storage, disposal, and recovery rate.
Clearance Markdown Recovery Scenario: Reperform a clearance markdown example with higher expected sell-through, lower storage, deeper price reduction, and unsold-unit recovery.
Dead Stock Markdown Modeling Mistakes: Find population, probability, fee, storage, disposal, cost-basis, accounting, privacy, and decision errors in markdown recovery models.
Dead Stock Markdown Decision Threshold: Set a seller-owned recovery threshold, evidence floor, sensitivity range, approval boundary, stop rule, and restoration trigger.
Moderate vs Clearance Markdown: Compare moderate and clearance markdowns across price, expected units, costs, storage, disposal, recovery, uncertainty, and reversibility.
Weekly Dead Stock Markdown Routine: Run a weekly age review, source reconciliation, scenario comparison, approval, monitoring, exception, and restoration routine.
Interpret Markdown Recovery Results: Interpret expected units, recovery, rate, threshold, uncertainty, operating boundaries, and actual-versus-expected results without false precision.
Dead Stock Markdown Audit Template: Audit inventory scope, price, sell-through, costs, storage, disposal, formula, approvals, execution, monitoring, privacy, and rollback.

Next step: Open Seller Profit Guard.

This is operational planning help, not tax, accounting, legal, financial, or platform-policy advice. Review the Terms and disclaimer, and verify current platform rules and fee assumptions before changing prices.