Currently you cannot invoice back ordered parts of a Point of Sales (POS) work order to a customer. The status of such work order (WIP) lines makes them unavailable for invoicing. The concerning WIP lines become available for invoicing after receiving the back ordered parts.
As it is not always clear how long it will take until the supplier delivers the parts, some lines can stay open for invoicing for a long time. In addition, the revenues of these lines are delayed.
With the Creation of a ZDEPOSIT line, a pre-pay functionality is added to the POS program for parts that are in back order. Thus, you may invoice parts that are in back order before the supplier delivers them.
See also: Setup
Before you can use the ZDEPOSIT line to invoice back ordered parts on an earlier state, you need to set up a number of parameters.