Invoice numbers and payment term

Separate number ranges

Invoices and credit notes have their own number ranges. Under Settings › Invoice numbers and payment term you set the prefixes, for example RE- for invoices and GS- for credit notes. The number after it counts up automatically, for example RE-0000042.

• Numbers already used are never reused.
• A new prefix starts its own sequence, for example for a new financial year.
• Invoices and credit notes need different prefixes.
• Letters, digits, dots, hyphens and underscores are allowed.

When a number is assigned

• The preview does not assign an invoice number.
• The number is reserved only when the final invoice is created, and only when company and order details are complete. If something is missing, the app stops first and shows the reason.
• If the technical creation fails after that, the number stays reserved and the retry uses the same number.

Switching from another invoicing tool

If you used another tool so far and want to continue its numbers, enter the Next invoice number and Next credit note number under Switching from another invoicing tool. Otherwise leave the fields empty. You can only increase the number.

Payment term

Payment term in days sets the due date on the invoice: invoice date plus these days. If the order has its own payment terms in Shopify, their due date applies. If the order is not paid yet, the invoice also shows a payment request – see Pay by invoice.