The Default Quantity is an optional entry on an Item Cards for setting a Quantity to be automatically filled in on sales transactions. It is useful for specifying a Minimum Order Quantity (MOQ).
This Solution describes this feature. (6202)
For a new line item the Quantity is determined by the Auto-Enter Quantity setting in Employee Prefs, which can be zero, one, or the last Qty entered.
On sales transactions (Qutote, Sales Order, and Invoice), Items with a Default Quantity