Preventing Freight and Tax lines from being invoice until all shippable item have been closed
SummaryConfiguration to make a non-shippable item wait to be invoiced until all shippable items have been closed.
Are non-shippable line item sometimes invoice on a separate invoice than the shippable items. We still want to be able to partially ship products on order that don't have tax/freight lines.
We know we can hold all lines until all are closed, but this would prevent us from partially shipping some orders.