HostingSubscriptionAdd will in certain circumstances create a subscription in an undefined state with unpredictable results. When you create an individual subscription its name will appear in the front-end but it cannot be used nor selected when adding a new domain. This must be the cause why I could not use HostingDomainAdd to add a domain (see for more information
Beitrag
No domain limit and HostingDomainAdd not working
I don't want to type it all again so I refer to the other post here: https://www.liveconfig.com/de/…=6243&viewfull=1#post6243
and
Beitrag
Limit nr of Internal domains in Hosting account and plan
I am surprised to to discover that the number of subdomains and external domains can be limited in account and hosting plan. But what about the Internal domains (managed by own DNS)? May be this was forgotten because only External domains were initially supported (DNS support was still missing)?
). The work around at the moment is to work with predefined hosting plans. These can be prepared in the web front-end with all the parameters and will create a working subscription.