IEA Interchange Control Trailer

To define the end of an interchange of one or more functional groups and interchange-related control segments

Position: IEA-01 · Element: I16 · Name: Number of Included Functional Groups · Type: Numeric (N0) · Requirement: Mandatory · Min: 1 · Max: 5 · Repeat: -

A count of the number of functional groups included in a transmission.

Position: IEA-02 · Element: I12 · Name: Interchange Control Number · Type: Numeric (N0) · Requirement: Mandatory · Min: 9 · Max: 9 · Repeat: -

This number uniquely identifies the interchange data to the sender. It is assigned by the sender. Together with the sender ID it uniquely identifies the interchange data to the receiver. It is suggested that the sender, receiver, and all third parties be able to maintain an audit trail of interchanges using this number.