← All Friday Seller Tools

Pay once · No Friday subscription

eBay Volume-Pricing Margin + Combined-Shipping Preflight

See which quantity discounts preserve margin after combined shipping.

eBay

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

  • Cent-rounded order and per-unit contribution at baseline and every tier
  • Viable, shipping-consolidation-needed, and unreachable-before-shipping bands
  • Shipping-and-packaging budget and exact reduction needed to reach your floor
  • First unviable and lowest viable evaluated quantities per listing
  • Seller-supplied input, rounding, and limitation notes for human review

Who it is for

eBay sellers and agencies checking whether proposed volume-pricing tiers still clear a seller-selected contribution floor after realistic combined-shipping and packaging costs.

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

How it stays safe

Friday performs arithmetic only on the listing aliases, prices, quantity tiers, discounts, marketplace-fee terms, product costs, shipping collected, shipping and packaging costs, and contribution floors you provide. It reads no eBay account, listing, order, shipping policy, promotion, rate table, or carrier source and verifies no field. A viable scenario predicts no demand, conversion, eligibility, sales lift, or Featured Offer outcome; a shipping reduction is equation context, not packaging, carrier, or product-safety advice. Friday creates no promotion, changes no price, listing, shipping rule, inventory, or account, does not publish listings, and does not modify a seller account.

Synthetic sample

See the deliverable structure before buying

{
  "plan_count": 3,
  "evaluated_tier_count": 11,
  "viable_tier_count": 5,
  "shipping_consolidation_tier_count": 3,
  "unreachable_before_shipping_tier_count": 3,
  "plans_with_unviable_tiers": 2,
  "plans_with_no_viable_tiers": 1,
  "review_queue_preview": [
    {
      "priority_rank": 1,
      "reference": "NW-VOLUME-PRINT",
      "no_tier_viable": true,
      "first_unviable_quantity": 1,
      "maximum_floor_shortfall_total": 16.65
    },
    {
      "priority_rank": 2,
      "reference": "NW-VOLUME-DESK",
      "lowest_viable_quantity": 1,
      "first_unviable_quantity": 2,
      "maximum_floor_shortfall_total": 33.3
    }
  ],
  "publish_status": "draft_needs_review",
  "safety": "Scenario arithmetic on seller-supplied quantity tiers, fees, costs, and floors only. It predicts no demand or promotion eligibility, gives no packaging advice, and changes no listing, price, shipping rule, or account."
}

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

Agent API and x402 details

POST /v1/ebay/offers/volume-pricing-margin-shipping-preflight

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 →

Related seller tools