內容簡介
Hosuke for Welcart 是一款專為 Welcart 電子商務設計的獨立補貨通知外掛。當商品缺貨時，該外掛會自動插入「缺貨通知」按鈕，讓顧客可以留下電子郵件，並在商品補貨時自動發送通知，轉化缺貨時機為銷售機會。
【主要功能】
• SKU 級別註冊，支援單一及多 SKU 產品
• 自動在缺貨標籤旁插入通知按鈕
• 實時檢測庫存變化
• 三種可自訂的電子郵件模板
• 支援 Google reCAPTCHA v3 防止垃圾郵件
• CSV 匯出功能
外掛標籤
開發者團隊
原文外掛簡介
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. 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 (works with both single-SKU and multi-SKU products)
Automatic injection of the notify button next to the Welcart sold-out label via the standard usces_filters_single_sku_zaiko_message filter
Real-time stock change detection on product save
15-minute WP-Cron background scan (catches stock changes made outside the admin UI)
Three customizable email templates: registration confirmation, restock notification, admin alert
[hosuke_restock_list] shortcode and sidebar widget to display recently restocked items
Both guest and Welcart-member registration flows (member email auto-fills)
Google reCAPTCHA v3 integration for spam protection
Per-IP rate limiting on the registration endpoint
Send queue with exponential-backoff retry (up to 3 attempts)
Automatic cleanup of expired notifications
GDPR / Japanese Personal Information Protection Act compliance via the WordPress Privacy Tools (Export / Erase)
One-click unsubscribe for shoppers (via email link or Welcart my-page)
CSV export from the admin panel
WP-CLI command: wp hosuke send-queue
REST API: POST /wp-json/hosuke/v1/send-queue, GET /wp-json/hosuke/v1/restock-list
Japanese and English translation files bundled
Requirements
WordPress 6.0 or higher
PHP 7.4 or higher
Welcart e-Commerce 2.9 or higher
About the author
Hosuke is developed and maintained by Kobayashi Sharyo Co., Ltd. as part of the kbsr product line for Welcart and WordPress.
Other kbsr products:
Banto for Welcart — Amazon Pay V2 payment gateway + 5-carrier shipping label integration for Welcart (paid)
Bunsuke — Japanese-focused AI writing assistance plugin for WordPress (paid)
See the full product lineup for details.
Privacy Policy
Hosuke stores the following personal data:
Email address of subscribers
Optionally, Welcart member ID (if the subscriber is logged in at registration time)
Hashed IP address at registration (SHA-256, salted with WP nonce_salt)
User agent string
Timestamps: registration, notification sent, unsubscription
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.
Third-Party Services
Hosuke can optionally integrate with Google reCAPTCHA v3 for spam protection.
When enabled, the reCAPTCHA JavaScript library is loaded on product pages that display the notification button.
The reCAPTCHA token is sent to Google’s servers for verification.
Google’s terms and privacy policy apply: https://policies.google.com/privacy
This integration is off by default and must be explicitly enabled in Settings with your own site key and secret.
