Yes, there is an easy trick. Send a message to the previous program on the
stack, receive this message in your program and the sender information
contains the caller. check the command for more info.

Here is some CL source to get you going.

            pgm parm(&CALL &PGM)

            SNDPGMMSG  MSG('knock knock') TOPGMQ(*PRV &CALL) +
            CHGVAR     VAR(&PGM) VALUE(%SST(&SENDER 56 10))



----- Original Message ----- 
From: "CZE Midrange" <CZEMidrange@xxxxxxxxxx>
To: <midrange-l@xxxxxxxxxxxx>
Sent: Thursday, March 04, 2004 12:53 PM
Subject: Recursive program calling

> I know this problem can be avoided with parameter usage but is there any
> function available within RPG400 that will enable you, while inside
> B, to extract the name of program A that just called you? Hope so.
> Thanks much.
> Rick
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