Help
Install
Install from the Shopify App Store listing (https://apps.shopify.com/invoice-packing-slip-ko-ja-en). The app asks for read access to orders, products and inventory — products and inventory are needed for HS codes and country of origin on the commercial invoice.
First-time settings
Open the app → Settings. Set your default document language (Korean, Japanese or English), seller block (your company name, address, contact), tax ID label and number, logo URL (a public https PNG or JPG), document number prefix and footer text. Save.
Generate a document
Orders tab: search by order number or customer email, then use the INV / PS / CI buttons on a row to preview or download an invoice, packing slip or commercial invoice. Tick several orders and choose a document type to download a ZIP (up to 50 orders at once).
- Order page: use the Print invoice / packing slip link in the order's More actions menu to jump straight to that order's documents.
Commercial invoice
HS code and country of origin come from each product variant's inventory item in Shopify (Products → variant → Customs information). Weights use the variant's weight. Incoterms, reason for export and a default country of origin are set once in Settings and can be left blank.
Languages
The default language applies to every document; use the language switch on a row or in bulk download to override for one customer. Mixed Korean/Japanese/English text in names and addresses renders correctly.
Plans and limits
Free: 30 documents per calendar month (sample previews do not count). Pro: $9/month for unlimited documents with a 7-day free trial, billed on your Shopify invoice. Upgrade or switch back to Free on the Plan tab; switching back ends Pro immediately.
Automatic email
Settings → Automatic email: choose the document type and turn it on. When a new order is created, the customer receives that document as a PDF attachment, in your default language, from an address named after your shop with your reply-to. Each automatic email counts toward the Free limit.
Troubleshooting
- Logo missing on the PDF: the URL must be public https and end in .png or .jpg; the document still renders without it.
- Document limit reached: upgrade to Pro on the Plan tab or wait for the next calendar month.
- Blank customs fields: fill HS code / country of origin on the variant's inventory item in Shopify, or set a default origin in Settings.
Support
Email support@sl-studio.dev. We answer within two business days.