B1 Beginning Segment for Booking or Pick-up/Delivery

To transmit identifying numbers, dates and other basic data relating to the transaction set

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Position
Element
Name
Type
Requirement
Min
Max
Repeat
B1-01
Standard Carrier Alpha Code
Identifier (ID)
Optional
2
4
-
Standard Carrier Alpha Code
B101 is the SCAC code of the carrier sending the EDI transmission.
B1-02
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.)
B1-03
Date
Date (DT)
Optional
6
6
-
Date (YYMMDD).
B103 is the booking date accepted by the carrier.
B1-04
Reservation Action Code
Identifier (ID)
Optional
1
1
-
Code identifying action on reservation or offering.
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