CIF Header

The CIF Header record (HD) occurs at the start of the file and provides information such as when the file was generated and, for update extracts, the file reference of the last file that was processed. This is important, as CIF update extracts must be processed in order, as they are effectively set of changes since the last extract generated for a particular profile.

Record Format

HDTPS.UDFROC1.PD1503060603152151DFROC1RDFROC1QUA060315050316

Record Fields

Field	Format	Length	Example Value	Comments
Record Identity	String	2	HD	Always HD
File Mainframe Identity	String	20	TPS.UDFROC1.PD150306
Date of Extract	Date (DDMMYY)	6	060315
Time of Extract	Time (HHMM)	4	2151
Current File Reference	String	7	DFROC1R	The last character increments from A through to Z. The file reference remains unique for a maximum of 26 extract files.
Last File Reference	String	7	DFROC1Q
Update Indicator	U/F	1	U	U = Update Extract, F = Full Extract
Version	Char	1	A
User Start Date	Date (DDMMYY)	6	060315
User End Date	Date (DDMMYY)	6	050316
Spare	String	20	(empty space)

CIF
CIF	HD (Header) • ZZ (End of File)
TIPLOC	TI (TIPLOC Insert) • TA (TIPLOC Amend) • TD (TIPLOC Delete)
Association	AA (Association)
Location	BS (Basic Schedule) • BX (Basic Schedule Extended) • LO (Location Origin) • LI (Location Intermediate) • CR (Change-en-Route) • LT (Location Terminate)