It is possible to set up a specific field where the content must be included as a note to the Electronic Invoice in the XML file.
Go to Sproom Service Settings and select Actions and Embed Fields and select Table fields
Choose from which table you want information from
Choose which field from the selected table
In this example, "Work Description" is selected from the Invoice header and it is then included on the Electronic Invoice.
You can choose what ever field from the table but it will come out in the same place on the Electronic Invoice