# Friday Seller Tools – Amazon FBA Inbound Root Cause Analysis

> Friday Seller Tools – Amazon FBA Inbound Root Cause Analysis 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 2026-10-18).

Analyzes and identifies root causes of Amazon FBA inbound shipment issues, discrepancies, or problems for seller resolution.

## Facts

- Endpoint: POST https://friday-seller-tools-production.up.railway.app/v1/amazon/fba/inbound-root-cause?utm_source=zero.xyz
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/friday-seller-tools-amazon-fba-inbound-root-cause-analysis-6c57b67e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K0u9ngoJ1WhARBiuaEzFi

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-inbound-root-cause-analysis-6c57b67e -d '<json body>'
```

Example prompt: Can you run an FBA inbound root cause analysis on my shipment — it was flagged for a quantity discrepancy and I need to know exactly what went wrong so I can file a dispute with Amazon?

## When to prefer this

Choose this endpoint when a seller needs to diagnose why an Amazon FBA inbound shipment was flagged, short-received, rejected, or shows inventory discrepancies — especially when preparing to file a dispute or corrective action with Amazon Seller Support. It is purpose-built for FBA inbound logistics troubleshooting rather than general listing creation or advertising tasks.

## Known failure modes

- Missing or invalid shipment ID returns a validation error
- Shipment data not yet available in Amazon's system returns a not-found error
- Malformed request body returns a 400 bad request
- Service unavailability on Railway infrastructure returns a 503
- Job queued but result delayed if backend processing is congested

## 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 queued status immediately upon submission; the completed analysis identifies the specific root cause(s) of the FBA inbound shipment issue (e.g. receiving errors, labeling problems, quantity mismatches), along with diagnostic details and recommended resolution steps to help the seller address or dispute the issue with Amazon.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "records": {
   "type": "array",
   "items": {
    "type": "object",
    "title": "FbaInboundProblemRecord",
    "required": [
     "record_reference",
     "shipment_id",
     "sku",
     "problem_type"
    ],
    "properties": {
     "sku": {
      "type": "string",
      "title": "Sku",
      "maxLength": 120,
      "minLength": 1
     },
     "fee_type": {
      "enum": [
       "none",
       "unplanned_prep",
       "unplanned_labeling",
       "manual_processing",
       "receive_discrepancy",
       "other"
      ],
      "type": "string",
      "title": "Fee Type",
      "default": "none"
     },
     "shipment_id": {
      "type": "string",
      "title": "Shipment Id",
      "maxLength": 120,
      "minLength": 1
     },
     "assessed_fee": {
      "type": "number",
      "title": "Assessed Fee",
      "default": 0,
      "maximum": 1000000,
      "minimum": 0
     },
     "problem_type": {
      "enum": [
       "quantity_discrepancy",
       "missing_or_unscannable_barcode",
       "incorrect_prep",
       "unexpected_item",
       "wrong_item_received",
       "expired_or_short_dated",
       "prohibited_or_restricted",
       "damaged_inbound",
       "no_manifest_or_labeling",
       "other"
      ],
      "type": "string",
      "title": "Problem Type"
     },
     "coaching_level": {
      "enum": [
       "none",
       "coached",
       "warning",
       "critical"
      ],
      "type": "string",
      "title": "Coaching Level",
      "default": "none"
     },
     "record_reference": {
      "type": "string",
      "title": "Record Reference",
      "maxLength": 120,
      "minLength": 1
     },
     "expected_quantity": {
      "type": "integer",
      "title": "Expected Quantity",
      "default": 0,
      "maximum": 10000000,
      "minimum": 0
     },
     "received_quantity": {
      "type": "integer",
      "title": "Received Quantity",
      "default": 0,
      "maximum": 10000000,
      "minimum": 0
     }
    },
    "description": "One normalized row from an FBA inbound-performance report, no PII.",
    "additionalProperties": false
   },
   "title": "Records",
   "maxItems": 2000,
   "minItems": 1
  },
  "marketplace": {
   "type": "string",
   "const": "amazon_us",
   "title": "Marketplace",
   "default": "amazon_us"
  },
  "report_label": {
   "type": "string",
   "title": "Report Label",
   "maxLength": 120,
   "minLength": 1
  }
 }
}
```

## 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-inbound-root-cause-analysis-6c57b67e/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)