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Amazon Seller Central (SP-API)
Marketplace

Amazon Seller Central (SP-API)

LIVE

Full Amazon Selling Partner API integration — orders, listings, catalog, pricing, advertising, FBA, MCF, reports, feeds, finances, and returns. Login with Amazon (LWA) OAuth + AWS Signature v4. Per-operation token bucket rate limiting.

What you'll connect

Full Amazon Selling Partner API integration — orders, listings, catalog, pricing, advertising, FBA, MCF, reports, feeds, finances, and returns. Login with Amazon (LWA) OAuth + AWS Signature v4. Per-operation token bucket rate limiting.

Prerequisites

  • Active Amazon Seller account (US or international marketplace).
  • SP-API Developer account ($1,400/yr) — register at developer-docs.amazon.com.
  • LWA application with refresh token (created during OAuth consent).
  • AWS IAM role for SigV4 signing (separate from your seller AWS account).

Connect in 60 seconds

  1. 1
    Text us your phone number on the landing page → tell us "Amazon seller". Our amazon_listing_agent initiates SP-API OAuth.
  2. 2
    Authorize Commerce Index in your Seller Central account — Apps & Services → Develop Apps → Manage → Authorize new developer.
  3. 3
    Paste the SP-API redirect URI we provide; complete OAuth consent. Refresh token is captured automatically.
  4. 4
    First sync completes within 15 minutes: ~30 days of orders, all listings, FBA inventory.

What syncs after connection

  • Orders
    GetOrders with status filtering; line items, shipment status, returns
  • Listings
    Listings Items 2021-08-01; create, update, delete; attributes per product type
  • Inventory
    FBA + seller-fulfilled summaries; per-marketplace granularity
  • Pricing
    Item + competitive pricing; offer count + buy box status
  • Advertising
    Sponsored Products campaigns, ad groups, keywords (separate Advertising API)
  • Reports
    Orders, inventory ledger, FBA returns, settlements
  • Feeds
    Bulk product/inventory updates; chunked uploads with completion polling
  • Finances
    ListFinancialEvents — settlements, refunds, fees, reserves

Agents that act on this data

amazon_listing_agent
Listing creation + A+ content + brand registry
amazon_advertising_agent
Sponsored Products/Brands optimization
amazon_repricing_agent
Dynamic pricing within guardrails
head_ecommerce
Channel routing director

Troubleshooting + status

SP-API returns 403 on first call

LWA refresh token expired or AWS IAM role missing. Re-authorize in Seller Central; verify AWS IAM "ExecuteAPI" permission is granted.

Rate limit (429) errors

Each SP-API operation has its own token bucket. Our client uses adaptive backoff — most 429s self-resolve within 60s. Check /api/v2/platforms/sync_log for retry counts.

Listings fail with "missing required attribute"

Amazon changes product-type required attributes frequently. Check your sync_log for the specific attribute name and update via our listing UI or via PUT /listings/...

FBA inventory shows 0 when I have stock

FBA inventory reports lag by ~1 hour. If still 0 after 2 hours, run a manual sync from /dashboard/inventory.

Need help? Contact support →