1. Open the Order file and check if the Retailer has sent Header allowance/charge or Line level allowance/charge.
2. Check the AllowanceChargeCode.
3. Go to List>Allowance & Charge. Check if there is Line-Item code mapped against that Allowance & Charge.
4. If there is no Line-Item code mapped, ask the client if they already have the Item codes for that allowance/charge.
5. If yes, click on Edit>Add the LineItem code>Update.
6. If not, they would need to add the Item code, refresh items and then follow the above steps.