[SL] Purchase Order field?

[Danita Z. <da...@ca...>]

Maybe I'm just blind, but I can't seem to find a variable to replace the =
"order" field in an invoice with "Purchase Order" - in our business, we =
really never have a need to pass our internal "Sales Order" information to =
the invoice, but we always need to pass the "purchase order" info.  I've =
just taken to putting the purchase order number in the "order" field, but =
if there is a way to pass this info to the invoice I'd be happier.

Thanks.

Danita