For US warehouse to receive status notification messages on air shipments going into their facility on release or transfer of the cargo. The warehouse cannot release the cargo out of the facility if there is a hold or customs inspection message on the shipment.

 

What is FSQ?

Freight Status query is a type of message warehouse can send to CBP to check for status of an air waybill (MAWB, HAWB). After a FSQ message is sent to CBP, it will return back with a FSC message indicating the info.