Amazon have been taking a while to unpack products once they reach the warehouse for FBA. Once you have sent the products, go back into your shipping plan, click on the “track shipment” tab and enter the tracking number for the shipment – Amazon say they will unpack these cartons 30% faster:
“Want your shipments received faster?
Ensure that you provide the correct tracking IDs from your carrier. This can help Amazon receive your shipment up to 30% faster and make your products available for sale sooner. Upload here“