3730935 - Error: "Error while sending request to Tracking Service. Status Code: 400 BAD_REQUEST"

Tracking events for Airfreight are failing with error: { "message": "Error while sending request to Tracking Service. Status Code: 400 BAD_REQUEST, Response: JSON parse error: Cannot deserialize value of type `com.sap.lbn.trackingservice.domain.input.generic.TransportationMode` from String \"04\": not one of the values accepted for Enum class: [01, 03]" } 

SAP BN4L (Business Network for Logistics), Freight Collaboration (FC), Airfreight Tracking, 400 BAD_REQUEST, Cannot deserialize value, TransportationMode , Enum class [01, 03] , Air Transport  , KBA , SBN-LBN-FC-FOR , Freight Order for Reporting , SBN-LBN-FC-MFE , Manage Freight Execution , SBN-LBN , Business Network for Logistics , SBN-LBN-FC , Freight Collaboration , Problem