Relative position, starting with position one, of this interchange or exchange block within the Interchange Mailbag.

Code identifying the type of interchange or exchange block content. For an interchange, this identifier is the name of the interchange control segment. For an exchange block it is the filename extension if available, else it is user defined.

Code indicating the system/method of code structure used to designate the sender or receiver ID element being qualified

Identification code published by the sender for other parties to use as the receiver ID to route data to them; the sender always codes this value in the sender ID element

Code indicating the system/method of code structure used to designate the sender or receiver ID element being qualified

Identification code published by the receiver of the data; When sending, it is used by the sender as their sending ID, thus other parties sending to them will use this as a receiving ID to route data to them

Date of the interchange

Time of the interchange

A control number assigned by the interchange sender

The number of bytes to be skipped when processing the interchange or exchange block content before searching for the next Interconnect Mailbag Control segment.

Code specifying the type of filter used to convert data code values