Amazon Marketplace Sync (FBA/FBM/MCF)

主な機能

Two-way listing & catalog sync between Shopify and Amazon Seller Central, matched on SKU, ASIN or barcode

Order import/export with line-item, tax and shipping mapping, deduplicated against an idempotency key

Real-time inventory sync via Shopify webhooks (inventory_levels/update) and Amazon SP-API FBA Inventory feeds

FBA inventory visibility surfaced against Shopify multi-location inventory so on-hand vs. available is accurate per location

Multi-Channel Fulfillment (MCF): route Shopify orders to your FBA stock and write Amazon tracking back to the Shopify fulfillment

Price & buy-box repricing hooks — push price changes either direction and trigger your own repricing rules

Channel state stored in Shopify metafields (ASIN, listing status, last-synced hash, fulfillment route) for Liquid/Flow access

Built on Shopify Admin GraphQL API with registered webhooks for orders/create, products/update and inventory updates

Idempotent, debounced inventory writes with retry/backoff to prevent oversell during high-volume bursts

SP-API integration for Listings, Orders, FBA Inventory and Fulfillment Outbound, authorized via OAuth

SKU mapping & reconciliation table with conflict reporting for unmatched or duplicate listings

Sync activity log and error dashboard so failed syncs are visible and retryable, not silent

Configurable field mapping for titles, attributes, images and variant options per your catalog structure

Currency and tax handling aligned to your Shopify markets and Amazon marketplace settings

受注生産、すべておまかせ

自分での設定は不要 — ECOSIRE が構築・インストール・サポートする実働アプリです。

ご注文

一回限りの構築料金から始めます。キックオフで一緒に範囲を決めます。

構築とインストール

ECOSIRE がお客様の Shopify 上で構築・設定・インストールします。

本番稼働 + サポート

約2〜4週間で稼働し、リリース後のサポート期間が付きます。

この製品について

Amazon Marketplace Sync (FBA/FBM/MCF) is a build-to-order Shopify app that ECOSIRE designs, develops, installs and supports for your store — not an instant App Store download. After purchase, our engineers scope your catalog and fulfillment model, build the connector against your Shopify and Amazon (SP-API) accounts, and hand you a running integration.

The app establishes a two-way sync between Shopify and Amazon Seller Central. SKUs are matched on a shared identifier (SKU, ASIN or barcode) and reconciled into a mapping table so the same physical stock is represented correctly on both channels. Inventory writes are debounced and idempotent to avoid oversell during bursts, and Shopify's multi-location inventory is respected so FBA, FBM and your own warehouses don't collide.

On the Shopify side we use the Admin GraphQL API, register webhooks for orders/create, inventory_levels/update and products/update, and store channel state (ASIN, listing status, last-synced hash, fulfillment route) in metafields so it's queryable from Liquid, Flow and the Admin. On the Amazon side the connector talks to SP-API for Listings, Orders, FBA Inventory and Fulfillment Outbound.

Core capabilities: push/pull listing & catalog sync; order import from Amazon into Shopify (and Shopify→Amazon where relevant); FBA inventory visibility surfaced against Shopify locations; MCF to fulfill Shopify orders from your FBA stock with tracking written back; and price/buy-box repricing hooks you can drive from your own rules.

Because it's bespoke, the app fits your SKU structure, tax, currency and fulfillment routing — and we support and maintain it after go-live. Setup involves OAuth authorization to both platforms; no credentials are hard-coded. Honest delivery: typically 2–4 weeks depending on catalog size and edge cases.

得られるもの

A custom Shopify app built for your store, installed and connected to your Shopify and Amazon Seller Central accounts via OAuth

SKU mapping configuration covering your live catalog, with a reconciliation report of matched/unmatched/duplicate listings

Configured webhooks and SP-API subscriptions for orders, inventory and listing changes

MCF fulfillment routing wired to your FBA stock with tracking write-back to Shopify

Repricing/price-sync hooks configured to your direction and rules

Admin sync dashboard with activity log, error queue and manual retry

Handover documentation covering architecture, field mappings, env config and operational runbook

Post-launch support window with bug fixes and Shopify/SP-API breaking-change maintenance

これは誰のためのものですか

Dual-channel DTC seller

Runs both a Shopify store and an Amazon Seller Central account for the same products and is tired of manually reconciling stock counts and chasing oversells across the two channels.

FBA-first brand expanding to Shopify

Holds most inventory in Amazon FBA and wants Shopify orders fulfilled from that same FBA stock via MCF, with accurate available-to-sell numbers instead of guesswork.

Operations / inventory manager

Owns stock accuracy and fulfillment SLAs and needs a single source of truth, an audit log of every sync, and an error queue they can retry — not a black box that silently fails.

Amazon Marketplace Sync (FBA/FBM/MCF) の比較方法

基準	エコシエール	カスタムビルド	競合他社
Two-way Amazon ↔ Shopify listing, order & inventory sync	付属	付属	付属
MCF: fulfill Shopify orders from FBA stock with tracking write-back	付属	付属	部分的なサポート
Tailored to your exact SKU structure, tax, currency & fulfillment routing	付属	付属	含まれていない
Built, installed & supported for you (no in-house dev team required)	付属	含まれていない	部分的なサポート
Price & buy-box repricing hooks you can drive with your own rules	付属	付属	部分的なサポート
Instant self-serve install from the Shopify App Store	含まれていない	含まれていない	付属
Ongoing maintenance against Shopify Admin API & Amazon SP-API breaking changes	付属	部分的なサポート	付属
Predictable one-time cost with no per-order or revenue-share fees	付属	部分的なサポート	含まれていない

Amazon Marketplace Sync (FBA/FBM/MCF) に関するよくある質問

Is this an instant Shopify App Store download?

No. This is a build-to-order app. After purchase, ECOSIRE scopes your catalog and fulfillment model, builds the connector against your specific Shopify and Amazon accounts, then installs and configures it. You get a connector tailored to your SKU structure rather than a generic one-size-fits-all listing.

How long until it's live in my store?

Delivery is typically 2–4 weeks from the time we have OAuth access to your Shopify store and Amazon Seller Central account, plus your catalog details. Larger catalogs, unusual variant/bundle structures, or multi-marketplace setups can extend this — we confirm a firm timeline during scoping before any build work starts.

What ongoing support and updates are included?

Every build includes a post-launch support window for bug fixes. Because Shopify's Admin API and Amazon's SP-API both ship breaking changes, we offer ongoing maintenance to keep the connector working against API version changes, webhook deprecations and new fulfillment requirements. We can also extend or change behavior as your operation grows.

Will this prevent overselling across Amazon and Shopify?

That's the core design goal. Inventory writes are idempotent and debounced, Shopify multi-location inventory is respected, and the same physical stock is reconciled to one mapping. Sync is near-real-time via webhooks and SP-API feeds, which minimizes the window for oversell — though no integration can fully eliminate it during simultaneous purchases on both channels at the last available unit.

What access do you need, and is it secure?

We authorize via OAuth on both Shopify and Amazon SP-API — no passwords or API keys are hard-coded. Access is scoped to the permissions the integration actually needs (orders, inventory, listings, fulfillment). You can revoke access at any time from Shopify and Seller Central.

Does it work with my existing FBM and own-warehouse fulfillment?

Yes. The app maps FBA, FBM and your own warehouse stock to distinct Shopify locations, so each fulfillment route has accurate on-hand and available counts. MCF routing is applied only to the orders and SKUs you designate, leaving your other fulfillment flows untouched.