This mainly relates to those using Xero. If you are not running Xero you can reverse everything including payments. With Xero, the invoice is locked as soon as it's sent to Xero.

Xero users

You can not delete an invoice that has been sent to Xero. You have two options if you want to make an invoice show as not correct in Jobsheet.

1. Void the invoice in Xero to make Jobsheet show the icon "V" for void

2. Completely credit the entire invoice in Xero to make Jobsheet show the icon "C" for credited

Both options will update in Jobsheet as voided and credited. If the wrong customer has been billed the best option is to void the invoice in Xero, and if it's the right customer but doubled-up then totally credit it. This way it's more obvious what happened because of the cancellation type.

*If you have deleted the invoice in Xero thinking that would update Jobsheet there is an easy fix.
Enter a new invoice in Xero with the job number as the invoice number then void / credit it. Jobsheet will pick that up and move it out of Waiting Payment into complete with an icon showing voided or credited.