Despite correctly configuring an MSAS data source in Cognos Administration, a test of the data source fails in DQM when configured to authenticate against an external namespace.
Compatible mode returns Succeeded, but Dynamic gives the error:
XQE-CM-0008 Unable to retrieve credentials for namespace "CAMID ("xxx")": CM-REQ-4342 An error occurred with the client.
As per the IBM Cognos documentation, you are not able to test a data source which is configured to use an external namespace for authentication.
Resolving The Problem
In order to test the data source, create and run a simple query which accesses the data source.
Alternatively, you can configure the data source to authenticate against service credentials rather than an external namespace.
15 June 2018