# Friday Seller Tools – Amazon FBA Promotion & Discount Leakage Audit

> Friday Seller Tools – Amazon FBA Promotion & Discount Leakage Audit is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).

Audits an Amazon FBA product's promotions and discounts to identify margin leakage caused by misconfigured, overlapping, or unintended discount structures.

## Facts

- Endpoint: POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/promotion-discount-leakage-audit
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/friday-seller-tools-amazon-fba-promotion-discount-leakage-audit-3be8d33e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dfW0vkwIaAHSMFgrbfv7J

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability friday-seller-tools-amazon-fba-promotion-discount-leakage-audit-3be8d33e -d '<json body>'
```

Example prompt: Can you run a promotion and discount leakage audit on my Amazon FBA product B08XYZ1234? I want to see where my margins are being eroded by misconfigured or stacking discounts.

## When to prefer this

Choose this endpoint when you specifically need to identify margin leakage caused by Amazon FBA promotion and discount configuration issues — such as stacking coupons, overlapping deals, or misconfigured lightning deals. It is purpose-built for Amazon FBA sellers who suspect their promotional setup is eroding profitability and need a structured audit deliverable rather than a general analytics report. Prefer this over generic repricing or analytics tools when the issue is specifically promotional discount structure rather than competitor pricing or inventory levels.

## Known failure modes

- Invalid or missing ASIN returns a 400 error
- Unrecognized promotion configuration format causes processing failure
- Job may remain in 'queued' status if backend processing is delayed
- Payment failure via x402 results in 402 response and no job creation
- Rate limiting may reject rapid successive audit requests

## How this service works

Instant, low-cost Amazon, Walmart, Shopify, and eBay listing, upload-preparation, advertising, and image-brief deliverables.

## Output

Returns a job_id and status (queued) immediately, indicating the audit has been submitted for asynchronous processing. The completed result will include identified discount leakage points, promotion conflicts, potential margin impact figures, and actionable flags for misconfigured or overlapping promotional structures on the specified Amazon FBA product.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "title": "FbaPromotionShipmentRow",
    "required": [
     "reference",
     "shipment_date",
     "sku",
     "quantity_shipped",
     "gross_item_revenue",
     "product_cost_per_unit",
     "fulfillment_cost_per_unit",
     "minimum_contribution_per_unit",
     "discounts"
    ],
    "properties": {
     "sku": {
      "type": "string",
      "title": "Sku",
      "maxLength": 100,
      "minLength": 1
     },
     "asin": {
      "anyOf": [
       {
        "type": "string",
        "pattern": "^[A-Z0-9]{10}$"
       },
       {
        "type": "null"
       }
      ],
      "title": "Asin",
      "default": null
     },
     "discounts": {
      "type": "array",
      "items": {
       "type": "object",
       "title": "FbaPromotionDiscount",
       "required": [
        "promotion_id",
        "discount_amount"
       ],
       "properties": {
        "rule_value": {
         "anyOf": [
          {
           "type": "string",
           "maxLength": 200
          },
          {
           "type": "null"
          }
         ],
         "title": "Rule Value",
         "default": null
        },
        "promotion_id": {
         "type": "string",
         "title": "Promotion Id",
         "maxLength": 100,
         "minLength": 1
        },
        "discount_amount": {
         "type": "number",
         "title": "Discount Amount",
         "maximum": 100000000,
         "exclusiveMinimum": 0
        }
       },
       "description": "One promotion discount applied to a seller-supplied shipped item row.",
       "additionalProperties": false
      },
      "title": "Discounts",
      "maxItems": 20,
      "minItems": 1
     },
     "reference": {
      "type": "string",
      "title": "Reference",
      "maxLength": 100,
      "minLength": 1
     },
     "product_name": {
      "anyOf": [
       {
        "type": "string",
        "maxLength": 300
       },
       {
        "type": "null"
       }
      ],
      "title": "Product Name",
      "default": null
     },
     "shipment_date": {
      "type": "string",
      "title": "Shipment Date",
      "format": "date"
     },
     "marketplace_fees": {
      "type": "number",
      "title": "Marketplace Fees",
      "default": 0,
      "maximum": 1000000000,
      "minimum": 0
     },
     "quantity_shipped": {
      "type": "integer",
      "title": "Quantity Shipped",
      "maximum": 100000
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "job_id": "example",
  "status": "queued"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/friday-seller-tools-amazon-fba-promotion-discount-leakage-audit-3be8d33e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from friday-seller-tools-production.up.railway.app](https://www.zero.xyz/host/friday-seller-tools-production.up.railway.app/llms.txt)