Additional Costs in POs
You can add any additional cost to a PO using the “Additional Cost” feature.
To do this, open the PO you want to update, and click on Insert Costs. Start typing the name of the cost, and it will be added to the PO as well as included in the PO export.
Add extra costs to a specific SKU line
As well as order-level costs, you can add extra costs to an individual SKU line — handy for per-product duties, tariffs, or handling that don't apply to the whole order.
Open the PO and find the Extra costs column in the order table (enable it via Columns if it's hidden). Click Enter costs on the row you want, then in the pop-up:
Give the cost a label (e.g. "Import duty").
Enter a fixed value (in the order's supplier currency) or a percentage (%).
For a fixed value, choose per unit (scales with the units ordered) or total (applied once to the row). A percentage always scales with units, so this toggle is disabled for %.
Click Add cost. Add as many as you need; each appears in the pop-up with a bin icon to remove it.
To apply the same cost to several SKUs at once, select the rows and use Extra costs on the bulk actions bar.
How is Landed Cost calculated?
Order-level extra costs are distributed proportionally across SKUs based on the quantity ordered. Per-SKU extra costs apply directly to that SKU line. Either way, extra costs roll into each line's Landed Cost and are reflected in Landed COGS (FIFO) reporting.
To Simplify...
Unit cost: Unit cost per unit
Landed cost: Unit cost per unit, including extra costs due to shipping/extras/discounts, etc. (as defined in POs). If there are no extra costs, then the same as the Unit cost
COGS: Unit cost × units sold
Landed COGS: Landed cost × units sold. If there are no extra PO costs, then same as COGS