When syncing from quickbooks Desktop, the total tax amount should sync over even if it's negative
When adding a credit to an invoice on a taxable item as a line item , it's possible that there will be a sales tax credit as well. This can lead to the sales tax on the invoice being a negative number. When syncing to Invoiced, the negative sales tax is currently ignored and this causes the invoice amount to be incorrect in Invoiced, and the customer then receives an invoice with the wrong amount due.
Can you please fix this bug?