This drop down combo is visible when the "Method" buttons are
(Explode) and (Explode) and the action is
the "Same-As Adding" from parent to parent.
It refers to the item number of the parent from which components
are copied when "Same-As Adding" is done for a maintained parent part.
It is populated with all Part Numbers of items that exist as parent parts
in the Product structure table, and also displays the Descriptions, Source,
Fixed Account and Serial/Lot Control attributes of the parts from the
Part Master table.
Take note that when a Project specific Bill of material is to be added,
the Maintained parent and reference parent will be forced to be the
same, since a Project specific BOM must be created by copying the
standard BOM as the baseline for the Project BOM. After this has
been done, the project BOM can be maintained to differ from the
The number of characters to be entered before the list is shown
is governed by the value of "populate length" (mandatory).