The IK3 data segment is created in the implementation
acknowledgment when an error is encountered in a data segment in the
subject interchange. When the implementation acknowledgment is
enabled, the Implementation Guideline (999)
transaction set is created. When FREDI encounters and error in
the subject document, this IK3 data segment is created in the
transaction set and a syntax error code is stored in Implementation Segment Syntax Error Code
(620) data
element.