Invoices in seconds.

From the first order to the last payment, every sale is in one place. Type an invoice with the keyboard alone, print it on any printer, or send it to the customer as a PDF. Stock and accounts update by themselves.

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Wanbooks sale invoice screen with five items and the bill total

Sample data from a demo company.

A sale invoice in Wanbooks

Item, quantity, unit and rate in one grid you can fill from the keyboard.

Sale invoice SI-00412Sample data
Ahsan TradersSalesman: Imran · Credit 15 days22-Oct-2026
Cooking oil 5L6 pcs × 2,95017,700
Basmati rice 10kg4 bags × 3,40013,600
Tea 950g12 pcs × 1,44517,340
TotalRs 48,640

Everything a sale needs

Each part works with the others, so nobody types the same thing twice.

  • Orders to invoicesTake a sale order in the office or from the Booker app, then turn it into an invoice in one step. Make the invoice before dispatch or after delivery, as you prefer.
  • Fast, keyboard-first entryEnter moves to the next box, arrows move in the grid, Ctrl+S saves. The customer's last rate fills in by itself. Works just as well on a phone.
  • Returns against billsTake goods back against the bill they came on. The customer's balance, the stock and the accounts are corrected together.
  • Cash sales and walk-in customersTick "Paid now" on any invoice and the receipt is made with it. Sell to walk-in customers without opening an account for them.
  • Price groups and taxSeparate rates for retail, wholesale and distributor customers. Sales tax and further tax added to invoices.
  • Print or send as PDFPrint on A4, A5 or thermal receipt paper, or send the invoice to the customer as a PDF on WhatsApp in one tap.

The details

Items and units

  • Sell by piece, box, carton or any unit
  • Enter the rate for one packing; the piece rate is worked out

Customers

  • Credit limits and credit days
  • Salesman on every invoice
  • Schemes and reward points

Reports

  • Sales register
  • Sales by product, customer, salesman and area
  • Monthly sales and top analysis

About sales

Can I make invoices on my phone?

Yes. Wanbooks opens in the browser on any phone or computer. The invoice screen fits a phone screen, and on a computer it works fully from the keyboard.

Can I change an invoice after saving it?

Yes, through Edit, Cancel or a Return. A saved invoice never changes silently, so the stock and the accounts always match.

Does the customer get the invoice on WhatsApp?

Yes. Send the invoice as a PDF file from the invoice screen, from your company's own WhatsApp number.

Sales works with everything else

Purchases and stockEvery invoice moves stock once, from the right warehouse. RecoveriesSee which bills are unpaid and collect against them. Booker appSalesmen book orders on the phone; the office turns them into invoices.

See Wanbooks with your own products.

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