PrerequisiteSubstitute the DBC prefix in place of dbcpfx for all library names.
Concatenate dbcpfx.APPLOAD to STEPLIB, including a definition of APPLOAD in the startup JCL (the IMSMSG JCL) for each dependent region that uses the interface.
The definition of APPLOAD should be a STEPLIB statement, as shown in the following example:
//STEPLIB DD DSN=dbcpfx.APPLOAD,DISP=SHR
// DD DSN=IMSVS.RESLIB,DISP=SHR