Invoices

LicenseDock generates a PDF invoice for every completed order. Numbering is sequential with no gaps.

Order Number vs Invoice Number

Number	When it's assigned	Format
Order Number	At checkout, before payment	Random hex – e.g. ORD-B45E8258
Invoice Number	After successful payment	Sequential – e.g. INV-0001, INV-0002

Order numbers are random so a customer can't guess other order URLs from theirs. Invoice numbers are sequential because tax authorities want it that way.

Sequential Numbering

Invoice numbers are assigned only when a payment succeeds, inside the same transaction that marks the order completed. The counter (invoice_next_number setting) is incremented atomically with SELECT ... FOR UPDATE, so concurrent webhooks can't double-issue or skip a number.

If the transaction rolls back, the order returns to pending and the invoice number is cleared – no gaps in the sequence.

Settings

Configure invoice details under Components → LicenseDock → Settings:

Setting	Notes
Invoice Prefix	Prefix for invoice numbers (default INV)
Order Prefix	Prefix for order numbers (default ORD)
Company Name	Falls back to Store Name
Address	Free-text business address
Tax ID	VAT, GST, EIN. Shown on every invoice
Invoice Footer	Free-text footer line
Store Logo	Used on the invoice header

Where Customers Get Invoices

• Customer portal – Orders section has a Download Invoice button on every completed order
• Receipt email – purchase_confirmation email links to the invoice
• Admin – order detail view in admin

PDFs are re-rendered on every request – so when you update your store name, logo, or tax ID, past invoices reflect the change.

Invoice Content

Each invoice includes:

• Invoice number and date
• Store/seller name, address, tax ID
• Customer name, billing address, customer tax ID (if supplied)
• Product and plan
• Subtotal, discount (when a coupon was applied), total
• Currency (the order's own currency, not necessarily the current store currency)
• Payment method and gateway transaction ID

Authentication

The customer-facing invoice download checks ownership – a customer can only access invoices for orders linked to their user ID. Anything else returns 404.