B13 Beginning Segment for Appointment Schedule
To transmit identifying numbers and other basic data relating to the Appointment Schedule transaction set
Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier
B1301 is the appointment pickup or delivery request reference number. It is a number assigned by the party requesting the original appointment that uniquely identifies the request for a pickup or delivery appointment. It is not a unique appointment number.
Standard Carrier Alpha Code
Code identifying the Standard Carrier Alpha Code
B1302 is the Standard Carrier Alpha Code (SCAC) of the carrier who will be keeping the appointment.