CICS Special Features 

ABAP supports the CPI-C Starter Set. When using the LU6.2 program interface for CICS, this means:

The table below contains a list of the CPI-C functions and the corresponding calls of the LU6.2 program interface (API) in CICS.

CPI-C calls and CICS calls

CPI-C in ABAP

CICS LU6.2 API

INIT

ALLOCATE

ACCEPT

SEND

RECEIVE

DEALLOCATE

 

EXEC CICS ALLOCATE + EXEC CICS CONNECT

EXEC CICS RECEIVE

EXEC CICS SEND

EXEC CICS RECEIVE

EXEC CICS SEND LAST + EXEC CICS FREE

You must always analyze the internal CICS EIB fields to check the return codes (for example, EIBERRCD). If errors occur, you must check the entries in the SAP system log.

If you transfer large data volumes, you should use frequent RECEIVE calls to ensure that data transfer has physically taken place and the control of the SAP Basis system is returned.