The PREREQ for Red Hat Enterprise Linux 7.2 as per below documentation
list some 8.x packages. (e.g. openldap-2.4.46-10.el8.i686.rpm).
This is very strange. Please verify, if this is really correct.
Release : 17.3
Component : SERVICE DESK MANAGER
This is a typo in the documentation
Raised a new defect: DE61790 and currently under investigation by Engineering team
They would need to swap the dependencies of RHEL 8.1 & 7.2.
Here is the correct package name.
Currently, Team is working on this, will let you know once the doc is updated.