You have a Invoice (header) with a series of Invoice Lines (related by Invoice ID).
You now want to duplicate the invoice with all it's lines.
A common request that I solve by....
...setting Variable to the Current Inv #
...duplicate Invoice (Header) and set Variable to New Inv#
...go to Invoice Line List and Find for Inv# original
...loop a duplicate and replace with new Inv#
This is a common request so I was curious if there was a better way.