I have a software service which is of HTTP analyzer (i.e fall under the category of 'website' tier in business unit of APM model). THe transactions/URL for that software indeed can be seen in DCRUM.
But it doesn't appear as a tier in AHS there. What have I forgot to check?
To appear on the AHS dashboard first of all the tier should be selected Make front-end tier and then the software services should be part of the business unit (application) also measurement source as a Probe.
Just double check these things in case something is missing.