イメージプレビューA build-to-order offline-first point-of-sale for WooCommerce that keeps your register selling when the internet
drops — orders queue locally and sync the moment you reconnect.
Offline-First POS for WooCommerceとは？
A build-to-order offline-first point-of-sale for WooCommerce that keeps your register selling when the internet drops — orders queue locally and sync the moment you reconnect. Built to order by ECOSIRE for WooCommerce (build-to-order) — indicative price from $999.00 USD; request a quote for a scoped proposal.
主な機能
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。
- 1
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。
- 2
構築とインストール
ECOSIRE がお客様の WooCommerce 上で構築・設定・インストールします。
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本番稼働 + サポート
約1週間（営業日ベース）で稼働し、本番稼働後2週間のサポートが付きます。納品したコードの不具合は無償で修正します。
この製品について
Offline-First POS for WooCommerce is a custom POS layer that ECOSIRE builds, installs, and supports directly on your existing WordPress + WooCommerce site — not an instant marketplace download. We engineer it around your catalog, tax rules, and hardware, then deliver a working register on your domain.
The core problem it solves: a standard WooCommerce checkout dies the instant connectivity drops, because every "place order" call hits the WooCommerce REST API (/wp-json/wc/v3/orders) live. This plugin flips that. Sales are written to a local IndexedDB queue inside a PWA (installable via a manifest.json + service worker) so cashiers keep ringing up customers with zero network. When the connection returns, a background sync worker replays the queue against the REST API and creates the real WooCommerce orders — into HPOS / custom order tables when enabled, or the legacy shop_order post type otherwise.
The browser caches your product catalog, prices, and tax classes so staff can search and add line items fully offline. On reconnect, an inventory conflict-resolution pass reconciles _stock meta against sales made on other registers, surfacing oversells for review rather than silently corrupting stock. Receipts render and print offline from a cached template.
Because we build to order, the POS is wired into your WooCommerce: your payment methods, your woocommerce_thankyou and order-status hooks, your tax setup, and optionally WPML or multisite. Typical delivery is a few weeks, after which ECOSIRE provides updates and support. You own the code on your server.
得られるもの
- A custom Offline-First POS plugin built for and installed on your WordPress + WooCommerce site, with source code you own
- PWA configuration (manifest.json + service worker) so the POS installs to tablet/desktop and launches full-screen
- wp-admin settings panel under WooCommerce for sync policy, cached-catalog scope, receipt template, and per-register setup
- Integration of the POS with your existing payment methods, tax classes, and order-status / woocommerce_thankyou hooks
- HPOS and (optionally) WPML / multisite compatibility configured and tested against your store
- A staging-environment deployment plus a guided go-live on your production site
- Offline receipt template styled to your branding and tested against your printer
- Setup documentation, a cashier quick-start guide, and a post-launch support window with updates
これは誰のためのものですか
Brick-and-mortar retailer with patchy connectivity
Runs one or more counters in an area where the broadband or mobile signal drops several times a day. Needs the register to keep taking sales and printing receipts through every outage, then reconcile cleanly once the line is back.
WooCommerce store owner unifying online and in-store sales
Already sells online with WooCommerce and wants the physical till to write into the same orders, stock, and customer records — without a separate, siloed POS system that double-counts inventory.
Multi-register shop or pop-up operator
Operates several tills, market stalls, or event booths on the same WooCommerce catalog and needs each terminal to queue independently offline, then merge sales and resolve stock conflicts without overselling.
Offline-First POS for WooCommerce の比較方法
| 基準 | エコシエール | カスタムビルド | 競合他社 | WooCommerce 標準機能 |
|---|---|---|---|---|
| Keeps selling and printing receipts with no internet connection | 付属 | 部分的なサポート | 部分的なサポート | 含まれていない |
| Local order queue with automatic replay to the WooCommerce REST API on reconnect | 付属 | 部分的なサポート | 含まれていない | 含まれていない |
| Inventory conflict resolution across multiple registers after re-sync | 付属 | 部分的なサポート | 含まれていない | 含まれていない |
| Built, installed, and configured on your existing WooCommerce site by the vendor | 付属 | 付属 | 含まれていない | 含まれていない |
| HPOS / custom order tables and WPML / multisite compatibility tested for your store | 付属 | 部分的なサポート | 部分的なサポート | 部分的なサポート |
| Instant self-service download from a public marketplace | 含まれていない | 含まれていない | 付属 | 付属 |
| Fixed low one-time price with no per-register or per-seat license | 付属 | 含まれていない | 部分的なサポート | 付属 |
| Source code you own on your own server | 付属 | 付属 | 含まれていない | 付属 |
Offline-First POS に関するよくある質問
How long until the POS is live on my site, and is this an instant download?
This is build-to-order, not a marketplace download. After we confirm scope — your catalog size, payment methods, tax rules, printer, and whether you use HPOS, WPML, or multisite — ECOSIRE builds and configures the plugin, tests it on a staging copy of your site, then deploys to production with you. Typical delivery is a few weeks depending on complexity. You get a working register installed on your own WordPress, not a ZIP you have to wire up yourself.
What exactly happens to a sale made while the internet is down?
The sale is written immediately to a local IndexedDB queue in the browser and a receipt prints offline from a cached template, so the customer is served with zero delay. Nothing is lost if the tab closes or the device reboots — the queue persists on disk. When connectivity returns, a background sync worker replays each queued sale against the WooCommerce REST API to create the real order (into HPOS tables or the legacy shop_order type), and a WP-Cron fallback retries anything still pending.
How do you stop overselling when two registers sell the last item offline?
On reconnect the plugin runs an inventory conflict-resolution pass that compares queued sales against current _stock meta and against what other registers synced. Instead of silently overwriting stock, conflicts (such as the same last unit sold twice) are surfaced for review according to the policy you choose in the WooCommerce settings panel — server-authoritative, last-write-wins, or hold-for-review. You decide how aggressive reconciliation is for your business.
Will it work with my existing WooCommerce setup — HPOS, WPML, my payment methods?
Yes, that's the point of building to order. We wire the POS into your live store: it creates orders through your configured payment methods, respects your tax classes, fires your woocommerce_thankyou and order-status hooks so email/invoicing/fulfillment automations keep running, and writes to HPOS custom order tables when you have them enabled. WPML and WooCommerce multisite compatibility are supported as optional scope and tested against your specific configuration.
What ongoing support and updates do I get after launch?
Every build includes a post-launch support window during which ECOSIRE fixes issues, tunes the sync and conflict behavior to your real-world usage, and keeps the plugin compatible with WordPress and WooCommerce core updates. Because you own the source on your server, there's no per-seat license lock-in. Extended support and maintenance can be arranged after the initial window, and we can add registers, printers, or new sync rules as your operation grows.
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Offline-First POS
A build-to-order offline-first point-of-sale for WooCommerce that keeps your register selling when the internet drops — orders queue locally and sync the moment you reconnect.
- Local order queue: sales are written to a browser-side IndexedDB store and replayed against the WooCommerce REST API (POST /wp-json/wc/v3/orders) automatically on reconnect
- Cached product catalog, prices, and tax classes synced to the device so cashiers can search and build carts with no connection
- Inventory conflict resolution on re-sync — reconciles _stock meta across registers and flags oversells for manual review instead of silently overwriting
- Installable PWA (manifest.json + service worker with a cache-first strategy) so a tablet or desktop runs the register full-screen, even after a reboot offline