I was able to add the voucher and i successfully made an invoice and applied it to the voucher. The system says paid and the voucher was reduced by the amount i applied but the invoice sent did not have that information on it. When i sent the test invoice it looks like the customer owes money. It does not show that the voucher was applied.
Jonathan,
For now, Standard print format doesn’t include Outstanding Amount field. Please create custom print format, with this fields included.
For this feature, you can follow up with is via this Github Issue.
Where is this document so i can edit it until v5 comes out?
You can go to Setup > Customize > Customize Form select Sales Invoice and uncheck the “Print Hide” property in Outstanding amount.