Use an invoice when the customer pays later, pays part now, or needs a proper bill.
Create it
Need the customer's agreement first? Make an estimate instead (numbered EST-0001…) and convert it once approved — see Estimates and customer approval.
Get paid
Open the invoice and tap Get paid:
Send it
Tap Send to text it, email it or open WhatsApp with the message already typed. The customer receives a link to the invoice online — no login — with Download / Print and, while money is owed, a Pay button (when online payments are set up).
Receipt and QR
More → Receipt prints it with your receipt template. Its QR code, and the link printed under it, open that same online invoice.
Refunds and voids