As of 2022, Amazon has changed the settlement reports we use to sync data. They do not currently associate the Inbound Shipment Cost with specific shipment IDs when shipping is purchased through Amazon. Because of this, we are unable to sync the individual Shipment Costs on the Accounting>Inbound Shipping page after a report is synced.
Although they cannot be tracked per shipment, the fees will still be accounted for as Inbound Shipping fees on the Other Expenses page and the Profit & Loss report accordingly when paid for using your Amazon disbursement.
The Shipment Cost field is no longer editable as a failsafe to prevent duplication of data. For example, if these costs were entered manually, but you pay for your shipping using your Amazon disbursement, the expenses will be doubled once we sync the settlement report containing the fees.
The only time you would want to manually enter inbound shipping costs on the Inbound Shipping page is if you do not pay for your shipping through Amazon. In this instance, you can enter them in the Other Cost field.
These totals will be tracked in the Expenses section of your Profit & Loss report.