No, this should not be the case!
Quickest way to solve this is to do what the message says - contact techsupport!
Andreas OestremAbsolutely! There must be a problem with something in your record... the vCampus team (vCampus@osisoft.com) or Technical Support (firstname.lastname@example.org) should be able to fix this...
According to the note above, it seems like my 1500$ membership only cover demonstration and trial licenses.
According to TechSupport, the issue was a misconfiguration in their SAP database.
After a couple of retries, they got it right and the MLA interface worked as it was supposed to.
Pity I wasted a couple of hours re-reading installation guides and checking my server installation. Next time I'll contact TechSupport first thing!
Thanks to Martin Lehmann for helping me out.
regards Andreas, Unitech Power Systems