From the Shipping Queue you can monitor the status of your shipments to Amazon's fulfillment centers.
If you have any questions about your shipments, follow these guidelines:
A shipment's status changes to Checked In when it first arrives at the fulfillment center. A checked-in shipment has not yet been opened. After a shipment has been opened and someone begins scanning the items to add them to your inventory, the shipment status changes to Receiving.
Shipments received at the wrong fulfillment center can take additional days to be received. You can confirm the shipment is delivered to the correct fulfillment center by comparing the delivery location from your carrier to the assigned fulfillment center in your shipment Summary page.
When multiple shipments arrive at the same fulfillment center, units may be received to a different shipment ID. The units will be received to your inventory, but will appear missing from the shipment. To verify the units were received, review the Received Inventory Report for the missing FNSKU.
If any of your units were not properly labeled and packaged, those units will be set aside and could take additional time to receive. Learn more about Packaging and Prep Requirements.
Sometimes sellers inadvertently send the wrong product in a shipment. For instance, a seller who listed 20 red units in a shipment might have accidentally shipped 20 blue units. Verify that the units you sent matched the ones you included in the shipment. From your Shipping Queue, go to the shipment Summary page and check if any SKUs other than what you thought you shipped were received. This could mean that you substituted one product for another in the shipment.
Contact your distributor and verify the quantity of each product sent and the item-package quantity (for sets).
Check your orders to see if any of the units you sent in have been sold. This could account for the quantity not matching what you sent to the fulfillment center.
If, after answering these questions, units in your shipment are still missing, use the Shipment Reconciliation tool in your seller account to reconcile your shipment. For more information, see Shipment Reconciliation tool.