To indicate the start of a transaction set and to assign a control number
20
B11
Beginning Segment for Shipment Status Inquiry
To transmit identifying numbers, dates, and other basic data relating to the transaction set
To specify the currency being used in the transaction set
To specify identifying information
To transmit weight information
To identify a party by type of organization, name, and code
70
N2
Additional Name Information
To specify additional names or those longer than 35 characters in length
To specify the location of the named party
To specify the geographic place of the named party
To identify a person or office to whom communications should be directed
To specify identifying information
To transmit information in a free-form format for comment or special instruction
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)