
報助 (ほうすけ / Hosuke) は、Welcart e-Commerce 専用の再入荷お知らせプラグインです。株式会社小林車輌が独立して開発した第三者製プラグインであり、Welcart e-Commerce 開発元 (株式会社Welcart) との公式な提携関係はありません。
商品ページを訪れたお客様が SKU 単位の売切・在庫切れを見つけたとき、Welcart 標準の売切ラベルの隣に「再入荷お知らせ通知」ボタンが自動で挿入されます。お客様がメールアドレスを登録して入荷待ちの状態になると、SKU の在庫が 0 から 1 以上に回復した瞬間に通知メールが自動配信されます。売切による離脱を、再購入への導線に変えるプラグインです。
usces_filters_single_sku_zaiko_message を利用した通知ボタンの自動挿入[hosuke_restock_list] とサイドバーウィジェットwp hosuke send-queuePOST /wp-json/hosuke/v1/send-queue, GET /wp-json/hosuke/v1/restock-list報助は 株式会社小林車輌 が、Welcart / WordPress 向け kbsr プロダクトラインの一環として開発・提供しています。
kbsr プロダクトのその他のラインナップ:
詳細は 製品一覧 をご覧ください。
Hosuke is an independent restock notification plugin designed specifically for Welcart e-Commerce. It is developed by Kobayashi Sharyo Co., Ltd. and is not officially affiliated with Welcart Inc.
When a shopper visits a product page whose SKU is currently sold out, Hosuke inserts a “Notify me when back in stock” button next to the standard Welcart sold-out label. The shopper enters their email address, and once the SKU’s stock transitions from 0 back to 1 or more, Hosuke automatically dispatches a notification email so the shopper can return to buy. Turns sold-out moments into recovered sales opportunities.
Key features: SKU-level registration (single/multi-SKU), automatic notify-button injection via the standard Welcart filter usces_filters_single_sku_zaiko_message, real-time stock change detection, 15-minute WP-Cron background scan, three customizable email templates (registration confirmation, restock notification, admin alert), [hosuke_restock_list] shortcode and sidebar widget, both guest and Welcart-member registration flows (member email auto-fills), Google reCAPTCHA v3 integration, per-IP rate limiting, send queue with exponential-backoff retry (up to 3 attempts), automatic cleanup of expired notifications, GDPR compliance via WordPress Privacy Tools, one-click unsubscribe, CSV export, WP-CLI command wp hosuke send-queue, and REST API endpoints. Japanese and English translation files are bundled.
Requirements: WordPress 6.0+, PHP 7.4+, Welcart e-Commerce 2.9+.
Hosuke is developed and maintained by Kobayashi Sharyo Co., Ltd. as part of the kbsr product line.
Hosuke stores the following personal data:
nonce_salt)This data is used solely for the purpose of delivering the requested restock notification.
Data is automatically deleted after the configured retention period (default: 90 days after notification, 365 days for unfulfilled registrations).
WordPress Privacy Tools integration is provided for GDPR-style data export and deletion requests.
Hosuke can optionally integrate with Google reCAPTCHA v3 for spam protection.
This integration is off by default and must be explicitly enabled in Settings with your own site key and secret.