Restrictions on the use of fields as programming interfaces
Some CICS® data area control block field definitions must not be used as part of a CICS application programming interface.
The Data areas contains definitions of the control block fields that form part of the Product-sensitive and General-use programming interfaces of CICS. Fields that are not defined in the CICS Data Areas manual as either Product-sensitive programming interface or General-use programming interface fields are not intended for your use as part of a CICS programming interface.