Various items in grocery, pharmacy or other retail businesses are sold in packs. For example, a packet of tablets may contain, say, 20 tablets; or a carton of milk can have 12 bottles of milk and so on. Thus when you enter such items you can give their conversion factor in this field. For instance, if you want to define a packet of tables with 20 tablets you will enter the name, code and other attributes of the tablet, and in the conversion factor field, you will enter 20.
For entering the conversion factor, click on the link named Show Additional Info .Then enter the conversion factor in Purchase Conv.Factor field.
Note: For such products, the price of a single product is defined. In the above example, you will enter the price of a single tablet.
If you have defined the conversion factor for an item, you can return items in Units on GRR (Goods Return Receipt) screen.
Similarly, while selling you can easily sell in both units and packs.