ok now it works fine. I use in line 0300 another library. These are the new lines:
//STEP1 EXEC COBCICS,PARM.TRN='COBOL3'
//TRN.SYSIN DD DSN=&SYSUID..CICS.COB(SQUARE1),DISP=SHR
//TRN.SYSIN DD DSN=&SYSUID..CICS.COB(SQUARE1),DISP=SHR
Thanks for help. This is a great forum.
Regards
Björn