B1 Beginning Segment for Booking or Pick-up/Delivery
To transmit identifying numbers, dates and other basic data relating to the transaction set
Position
Element
Name
Type
Requirement
Min
Max
Repeat
Code uniquely identifying a Transaction Set.
Due to the installation of the "ST" segment in all transaction sets, data element 143 in all of the "B" segments is redundant. DE143 will be retained as an optional data element for a period of adjustment. It is suggested that DE143 not be transmitted so it may be dropped from segment definitions in the future.
Identification number assigned to the shipment by the shipper (number does not contain blank or punctuation characters). Also see: Reference Number Qualifier (128).
Date booking for ocean voyage was accepted by the carrier.
Code identifying action on reservation or offering.