Mainframe, MVS and zOS Discussion

Before asking question, let me detail about the programs in picture.

Program A - Main program
Program B - sub-program - COBOL + IMS.
Program C - sub-program - COBOL + DB2.
Program D - sub-program - COBOL + DB2.

Note - Program C & D have same logic. The difference is that..
a. Program D has CICS statements in case DB2 logic fails and program C does not have any CICS statements.
b. Program C is compiled with CICS option as 'N'. While, Program D is compiled with CICS option as 'Y'

Main program A calls sub-program B. Program B is calling 2 sub-programs - C & D.
Program B is compiled with CICS option as 'Y'.

Question-
We are trying to call Program B in batch, but it fails with S0C1 in the IMS call. To resolve it, we set the CICS option as 'N' during compilation and then executed in batch and it worked fine. But, then the same version failed while executing in CICS region.
This is obviously because of CICS flag being 'N' during compilation.

Is there a way we can compile / modify Program B to execute in both batch and online mode?

If I've understood your question correctly - search for CICS DFHEIBLK and nested COBOL programs.

Edit:

There is an example at this link: https://www.ibm.com/docs/en/cics-ts/5.3 ... l-programs

Why do you want to make it too complex, is there not a way to make it easy?

Is there a way we can compile / modify Program B to execute in both batch and online mode?

The CICS and batch environments are different enough that there is no easy way to do this. The batch program would have to account for both DFHEIBLK and DFHCOMMAREA -- and that is without considering the ramifications of having IMS in there. You could extract the common logic into a new subprogram that has no CICS in it and use a COBOL CALL statement for the new subprogram to remove the dependency on CICS. If you wanted to do this, I'd recommend a static call and linking the subprogram into the load module.

Could you do it, if yes what was the solution arpitpatel0? Could you share that.