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Amazon FBA Inbound Defect Fee Charge Verifier

Recompute inbound defect fees from your own per-unit rate card.

Amazon

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

  • Per-line supplied charge versus affected units × your matching defect rate
  • Mismatch queue ranked by absolute difference with your tolerance
  • Shipment groups with defect types, first/last charge dates, and span
  • Positive and negative fee differences totaled separately, never netted
  • Per-rate summaries including unused supplied defect rates

Who it is for

FBA sellers, agencies, and finance teams reconciling seller-redacted inbound defect fee lines against their own current rate card before a human verifies the source report and current Amazon terms.

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

How it stays safe

Friday performs arithmetic only on the seller-redacted charge lines and per-unit defect rates you provide. It reads no Amazon account, shipment, inbound defect report, transaction ledger, or current fee table and verifies no value. The recompute is affected units × your exact matching defect rate; Friday looks up no rate, infers no defect cause, responsibility, prep or labeling requirement, waiver, or category rule, and makes no policy-compliance finding. Grouping lines under a shipment alias is context, not a timing finding. A difference is not proof Amazon billed incorrectly, a credit is due, or a case is available. Friday files no case, requests no reimbursement, creates or changes no shipment, changes no inventory, fee, listing, or seller account, and does not publish listings. A human must verify the source report and current Amazon inbound-defect fee guidance before acting.

Synthetic sample

See the deliverable structure before buying

{
  "charge_count": 5,
  "shipment_count": 3,
  "used_rate_count": 3,
  "affected_units": 72,
  "total_reported_fee": 73.75,
  "total_recomputed_fee": 73.5,
  "total_fee_discrepancy": 0.25,
  "possible_overcharge_exposure": 0.5,
  "possible_undercharge_exposure": 0.25,
  "mismatch_count": 2,
  "high_charge_count": 1,
  "review_queue_preview": [
    {
      "priority_rank": 1,
      "charge_reference": "NW-DEF-002",
      "shipment_alias": "SH-NW-21A",
      "defect_type": "PREP_NONCOMPLIANCE",
      "reported_fee": 8.0,
      "recomputed_fee": 7.5,
      "fee_discrepancy": 0.5,
      "status": "review_mismatch"
    },
    {
      "priority_rank": 2,
      "charge_reference": "NW-DEF-003",
      "shipment_alias": "SH-NW-21B",
      "defect_type": "UNEXPECTED_ITEM",
      "reported_fee": 9.75,
      "recomputed_fee": 10.0,
      "fee_discrepancy": -0.25,
      "status": "review_mismatch"
    },
    {
      "priority_rank": 3,
      "charge_reference": "NW-DEF-004",
      "shipment_alias": "SH-NW-21C",
      "defect_type": "MISSING_LABEL",
      "reported_fee": 30.0,
      "recomputed_fee": 30.0,
      "status": "review_high_charge"
    }
  ],
  "publish_status": "draft_needs_review",
  "safety": "Arithmetic on seller-supplied defect lines and rates only. A difference is not proof Amazon billed incorrectly or that a credit is due; no case is filed and no shipment, inventory, fee, listing, or account is changed."
}

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

Agent API and x402 details

POST /v1/amazon/fba/inbound-defect-fee-charge-verification

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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