By changing either of these names, you can redirect the message to its appropriate destination. That is, to change the MEMBER= specification, change XIT01_DXCFMEMBER in IXZ$XPL. To change the MBOXNAME= specification, change XIT01_DXCFMAILBOX in IXZ$XPL. Note that the message cannot be routed outside this JES XCF group; communication is limited to intra-group communication only.

Once exit IXZXIT01 makes the address change, it also must set the message destination change flag, XIT01_DEST_UP, in IXZ$XPL to inform JES XCF that the address is changed, and thus direct JES XCF to use the new address.