I am unable to reserve product-based license capacity to a pool in AutoPass License Server for ALM license management. What am I missing?

I'm following these steps but it doesn't seem to be picking up my ALM domain (create a pool using the same name as the domain name in Site Administration): https://admhelp.microfocus.com/alm/en/15.5-15.5.1/online_help/Content/Admin/APLS_licenses.htm#mt-item-5