Hi there, I am wanting to know how to stop the amount changing when we are editing an invoice/credit/bill etc and we change the item code? We would like the amount to stay the same just change the item code. We don't have any amounts stored against the item codes so not sure where the amounts are being pulled from when we change this? Invoices are imported in with the wrong item codes sometimes which need updating but we don't want the price updating

You cannot prevent this. You will need to manually set the price on the line.