ゆう開発室 Yu Dev Lab

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Terms of Service

Last updated: September 22, 2026

These terms govern the use of the Shopify app "Invoice & Receipt PDF (適格請求書・領収書PDF)" (the "App") provided by Yu Dev Lab ("we"). By installing the App you agree to these terms.

1. Service

The App generates receipts, qualified invoices and delivery notes as PDF from Shopify order data, and lets customers self-issue documents for their own orders.

2. Fees

Plans and prices are shown on the App's Shopify App Store listing. Billing, invoicing and refunds are handled through Shopify Billing under Shopify's terms. The free plan has a monthly limit on issued documents.

3. Merchant responsibilities

4. Prohibited use

Unlawful use, reverse engineering, and attempts to access other stores' data are prohibited.

5. Disclaimer and liability

The App is provided as is. We make reasonable efforts to keep documents accurate; for errors caused by Shopify changes or data inconsistencies, our liability is limited to the App fees paid in the most recent month. We are not liable for indirect damages.

6. Changes and termination

We may discontinue the App with 30 days' notice and will provide an export period for issued-document records.

7. Governing law

These terms are governed by the laws of Japan. Disputes are subject to the exclusive jurisdiction of the court having jurisdiction over our place of business.

8. Contact

See the support page.