Delay codes are for the delay code groups. It is possible to define delay code groups when necessary. For example, if an airline uses its own delay codes, those delay codes can also be defined at this screen.
Both numeric and alphanumeric delay code definitions can be made. The delay code group that airline uses and sub codes (numeric or alphanumeric) are specified at the airline screen after they are defined here.
The delay codes will then be used in sita message generation.
H1, H2 and H3 are the headers so that it is possible to generate sequential, well-justified delay code group reports.