INVOICES
How invoice numbers work (and using your own)
Invoices are numbered INV-0001, INV-0002 and onward automatically, never twice. You can type your own number on any invoice, or switch to your own numbering style.
Use a different number on one invoice
In the invoice’s Customer & dates step, type the number you want in Invoice number. Leave it blank to get the next number automatically.
Change your numbering style
Open Business settings → Branding & documents and find Document numbers.
Next to Invoices, choose Change.
Keep Automatic and set a Prefix, the number of Digits, the Next number and an optional Suffix. You can also include the year (like INV-2026-0007).
Or choose I’ll use my own: Intralyn never picks a number, and you type one on each new invoice.
Choose Save.
Other numbered documents
Quotes & estimates (Q-0001), purchase orders (PO-0001), sales orders (SO-0001), credit memos (CM-0001), return authorizations (RMA-0001) and bills of lading (BOL-0001) each have their own numbering you can change the same way.