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
B101
Transaction Set Identifier Code
Identifier (ID)
Optional
3
3
-
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.
B102
Shipment Identification Number
String (AN)
Mandatory
1
30
-
Identification number assigned to the shipment by the shipper that uniquely identifies the shipment from origin to ultimate destination and is not subject to modification. (Does not contain blanks or special characters.)
B103
Booking Date
Date (DT)
Conditional
6
6
-
Date booking for ocean voyage was accepted by the carrier.
B104
Reservation Action Code
Identifier (ID)
Conditional
1
1
-
Code identifying action on reservation or offering.

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