When Exporting & Importing Invoices, the contacts associated with the invoice are not exported.
If we export Draft invoices and import them back in, ALL contacts get ticked. Which is not what we want. We only want the ones that were ticked on the original Draft.
So currently it has to be done manually one by one. This doesn't scale for large businesses where we are sending 200 plus invoices off in one day.
For this reason we will need to switch to a different invoicing system.