Hello - We have a list of Invoices created with the wrong tax code due to someone changing the tax code on the customer. We reverted the change on the customer, but the correct tax code is not in the list when we try to update the line items on the invoice. • Easiest way to change this? or do we need to re-issue invoices? New invoices have the correct tax code and on the existing ones if I add a new line it will also reflect the correct tax code. Thanks

Credit and re-issue might be your best bet. It's timing consuming but gives a clear audit and tax trail. If they were super recent you could edit them if your finance team is happy with that.