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How to Manage Landed Cost in SKUs

This guide explains how to view, edit, and manage landed cost components

Landed Cost provide a per-unit cost breakdown for each SKU, combining all major cost components into a single view. You can find Landed Cost in the SKUs table in Inventory section.

Landed Costs in Seller Assistant account

Manage Landed Cost

Click on the Landed Cost in the product row. The Cost Breakdown panel shows per-unit costs, including:

  • Unit Cost

  • Purchase Order Expenses

  • Prep Cost

  • FBA Inbound Cost

  • FBM postage
    Merchant-fulfilled orders only. Not part of landed cost; it is deducted as its own P&L line. Enter your average postage per unit; any portion Amazon has already confirmed is netted out for you. While this is unknown, profit for this SKU cannot be calculated.

The cost components are calculated for one sellable unit, which is one pack that you sell on Amazon. For example, if a Purchase order item has the Amazon Pack Qty of 6, the Unit Cost is the cost of one unit multiplied by 6. If the item has the Case price type, the cost of one unit is the case price divided by the Case Quantity. Purchase Order Expenses are divided by the number of sellable units in the order.

Each component is labeled by its source:

You can modify any cost component. To restore the calculated value, reset the field.

Click any cost component to expand it and see:

  • Linked purchase orders

  • Shipment data

  • Weighted average details

You can use Import from Sellerboard button for bring costs in from a Sellerboard export. The import applies to your whole catalog – this SKU's cost updates once processing finishes:

  • Choose file – upload a CSV or Excel file (max 10 MB).

  • Set mode:

    • Overwrite all costs – replace existing costs with the values from the file

    • Only fill missing costs – set costs only where a SKU has no cost yet; leave existing costs unchanged

  • Set cost basis – what the imported number represents:

    • Cost only

    • Cost + prep

    • Cost + prep + inbound (fully loaded).

Automatic Updates and Cost Behavior:

  • Costs update when a Purchase Order is completed or its expenses change. For a SKU linked to a Purchase order item, they also update when the cost, Amazon Pack Qty, Price Type or Case Quantity of the item changes

  • Unit cost is taken from the latest linked PO or calculated as a weighted average. The weighted average is the total cost of the completed Purchase Orders divided by the number of sellable units in them

  • If no PO data exists, values remain empty until entered manually

  • FBA inbound costs locked for closed shipments and updated on each sync for open shipments

  • Prep costs filled from cost settings for Price List Analyzer – reflect the team owner's general prep settings.
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Landed Costs are also applied in the Repricer tool.

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