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eBay Discount Sales-Lift Margin Reality Check

See whether your eBay discount actually cleared its own cost.

eBay US

Included in the $9.00 Shelf Kit

Agent/API — $0.50
Review-first
Every output stays a draft. No credentials
No seller-account login required. Private delivery
Inputs expire after 24 hours. Clear recourse
Digital-service refund policy.

What you receive

  • Recomputed discount-sales share from supplied base, promotion, and total sales
  • Gross and net contribution if every promotion sale were incremental
  • Break-even gross margin and the discount cost as a share of promotion sales
  • An optional comparison-period incremental sales and contribution check
  • A stable review queue plus promotion-type and status summaries

Who it is for

eBay sellers, agencies, and finance teams sanity-checking Discounts Manager results before a human keeps, changes, or ends a promotion.

Delivery: usually a structured result, workbook, or ZIP depending on the tool.

How it stays safe

Friday calculates only from the eBay discount summary and unit-economics fields you supply. It reads no eBay account, API, report, order, listing, or buyer data and verifies no field. Reported sales lift attributes promotion-window sales to the discount but does not prove they were incremental; contribution here subtracts only the supplied discount cost and is not net profit. Friday does not publish listings and never creates, changes, pauses, resumes, or evaluates the compliance of a discount, promotion, or listing. A human must verify attribution, returns, fees, and the live report.

Synthetic sample

See the deliverable structure before buying

{
  "total_observed_promotion_sale": 1000.0,
  "total_discount_cost": 150.0,
  "total_net_contribution_if_all_incremental": 180.0,
  "aggregate_discount_sales_share_percent": 55.25,
  "aggregate_net_contribution_margin_percent": 18.0,
  "total_comparison_incremental_contribution": 60.0,
  "negative_even_if_incremental_count": 1,
  "comparison_reveals_loss_count": 1,
  "positive_contribution_count": 1,
  "audit_queue_preview": [
    {
      "priority_rank": 1,
      "record_reference": "LIFT-NEG",
      "promotion_type": "MARKDOWN_SALE",
      "observed_promotion_sale": 100.0,
      "discount_cost": 40.0,
      "net_contribution_if_all_incremental": -10.0,
      "break_even_gross_margin_percent": 40.0,
      "contribution_status": "negative_even_if_incremental"
    },
    {
      "priority_rank": 2,
      "record_reference": "LIFT-COMP",
      "promotion_type": "ORDER_DISCOUNT",
      "observed_promotion_sale": 400.0,
      "discount_cost": 60.0,
      "net_contribution_if_all_incremental": 40.0,
      "comparison_incremental_contribution": -10.0,
      "contribution_status": "comparison_reveals_loss"
    },
    {
      "priority_rank": 3,
      "record_reference": "LIFT-POS",
      "promotion_type": "VOLUME_DISCOUNT",
      "observed_promotion_sale": 500.0,
      "discount_cost": 50.0,
      "net_contribution_if_all_incremental": 150.0,
      "comparison_incremental_contribution": 70.0,
      "contribution_status": "positive_contribution"
    }
  ],
  "group_summary_dimensions": [
    "promotion_type",
    "status"
  ],
  "publish_status": "draft_needs_review",
  "safety": "Arithmetic on seller-supplied discount summaries only. Reported lift does not prove incrementality; no discount, promotion, or listing is changed."
}

This sample uses synthetic facts. Your output is generated only from the facts you submit.

Agent API and x402 details

POST /v1/ebay/discounts/sales-lift-reality-check

Exact x402 price: $0.50. Use the public OpenAPI schema and Base USDC payment flow. The response returns a private job URL and temporary token.

Open the API documentation →

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