# Sales quotation, Sales order and Sales invoice line grouping

Line grouping allows you to assign a group number to each line of a quotation, order, or invoice and to associate related lines together for reporting. This applies to Sales quotations and Sales orders and is designed to allow reports to show data differently. It has no effect on transactions, values, quantities.

For example, if your process states that Group 1 is the main group, you could have a QuickList designed that filters to a certain line group.