BizTalk installation/configuration

During the installation of BAM Tools you have an option to "Enable Analysis Services for BAM aggregations". When I tried to configure BizTalk the other day this part simply wouldn't work.

The error displayed looked like this:
Either the '' user does not have permission to create a new object in '', or the object does not exist.

This seemed odd to me because the previous parts of the configuration had successfully created several databases with the same user account.

So what's the problem then? Almost embarrasing... analysis services uses its own port, not the standard 1433 sql server port. So after add the required port to the firewall rules everything worked as expected.