Click Accounts receivable> Sales order .

If you have not already done so, click Advancedto view the complete form.

Press CTRL+N to create a new sales order, or select a sales order from the list.

Go to the Order linesand press CTRL+N to create a new order line or select an order line from the list.

Click Calculation> Supplementary items.

If you have set up supplementary items, they are listed in the Calculated supplementary itemsform. Otherwise you need to Set up supplementary item groupsor Create supplementary items.

The Calculated supplementary itemsform is divided into Mandatory supplementary itemsand Optional supplementary items.

To include the mandatory or optional supplementary items in the calculation, you need to select the Includecheck box.

Press OKto calculate the supplementary items.

You should be able to see the supplementary items on the Order linesin the Sales order form.

Click Accounts payable> Purchase order .

If you have not already done so, click Advancedto view the complete form.

In the Purchase order form, press CTRL+N to create a new purchase order or select a purchase order from the list.

Go to the Order lines, and press CTRL+N to create a new order line or select an order line from the list.

Click Calculationand select Supplementary items.

If you have set up supplementary items, they are listed in the Calculated supplementary itemsform. Otherwise you need to Set up supplementary item groupsor Create supplementary items.

The Calculated supplementary itemsform is divided into Mandatory supplementary itemsand Optional supplementary items.

To include the mandatory or optional supplementary items in the calculation, you need to select the Includecheck box.

Press OKto calculate the supplementary items.

You should be able to see the supplementary items on the Order linesin the Purchase order form.