To set up APPC/MVS for the Server Option
Define a token for the TP profile data set that corresponds to the APPC/IMS TM LU, using the DBMODIFY command of the ATBSDFMU utility:
//STEP1 EXEC PGM=ATBSDFMU //STEPLIB DD DSN=IMS41.RESLIB,DISP=SHR //SYSPRINT DD SYSOUT=A //SYSSDLIB DD DSN=SYS1.APPCTP,DISP=SHR //SYSSDOUT DD SYSOUT=* //SYSIN DD * DBMODIFY DBTOKEN(SYBAPPC) /* //