From LaneWiki

L’âne supports a simple invoicing and accounts receivables system. Currently, the payment terms only allow “due in X days” type of accounts (rather than “due on the Xth of the month”). It supports automatic early payment discounts (ie 2% 10 Days/Net 30), statement generation, page invoices (in addition to the register receipts), and many related features.

Invoicing Sales

1. To assign a sale to a given customer, open that customer. You can perform this operation at any time before finalizing (tendering) the sale.
2. Tender the sale to “House Account” (in the sample dataset).

After verifying that the customer has enough credit available on his or her account, the sale will be finalized.

Receiving Payments into a Customer’s Account

1. In a new sale, open that customer.
2. Enter the amount received (without the decimal separator).
3. Press R/A.
4. Finalize the sale with the appropriate tender (Cash, Check, et c.)

Viewing and Printing a Page Invoice

1. Run the sales-ticket.xml report (#Tools).
2. In the browser window, select Print (which is usually under File).

Related

Opening a Customer in Register

Enter the customer’s id and press Customer. This operation will assign this sale to the given customer (if your register interface has a summary area, the customer’s name will be displayed in that area).

Object Classes

Customer 

The basic unit of organization. Each customer can have one or more invoices (tickets) assigned to him or her. Also, each customer has a specific payment term, tax rate, and credit limit.

Term 

This object specifies the payment terms including due days, past due interest rate (not automatically applied), early payment discount days, and early payment discount rate (automatically applied).

Tools

XML Reporter 

The provided reports (invoices and statements) are written for this tool. (see Using XML Reporter)