Graham,
We also use 214 Transport Status messages, as far as I know we are interested in some set of Transport Messages like appointment data, pickups and delivery’s. The following is some of our Mandatory elements in the inbound 214’s which may help you.
IB Field Name - EDI Segment - Also refers to(In our System)
ShipmentID - B1002 - Trailer Load Num
CarrierCode - B1003 - Carrier Code
Every carrier have their own approach, but in the Inbound case you have the upper hand of telling them what you want, the above examples may or may not help you, but if you still have a specific field in mind please post it.
HTH,
Muru.
#edi#webMethods#Integration-Server-and-ESB