Firstly, make sure your Supplier is in Grain Trader as a Customer. If they aren’t use the Copy Function to make a Customer.
The next step is to create a Sale Contract for the supplier under their Customer Account.
This contract will be for the tonnage left on their Purchase Contract.
If there has been loads supplied on the Purchase Contract then you must charge GST on the Washout. If no loads have been supplied then the Washout will be GST free.
If the Washout is GST Free, open the Commodity and tick the Exempt GST Free Box.
Now that you have created the Sale Contract create a new load to process the Washout.
Select the Supplier and the Purchase Contract on the Source tab and the Suppliers Customers Account and the new Washout Sale Contract you have Created, on the Destination tab.
Enter zero dollars on the Source tab and on the Destination tab enter the amount per tonne you are going to invoice the Supplier for.