MDX with External Hierarchy

Question

Hi,
I have a problem with querying a BEx query cube by MDX. The BEx query contains an external hierarchy that facilitates MDX functions such as Generate(). The MDX query is working in MDXTEST transaction code in BW system. However the error - "system error in program cl_rsr_mdx_soap_handler... The server sent an unrecognizable response." is raised when trying it through XMLA provider from Microsoft Reporting Services. For other BEx queries that don't have external hierarchy, the Reporting Services can successfully query them via XMLA.
Does anyone know what the issue is?
Thanks a lot,
===================================
The server sent an unrecognizable response. (Microsoft Visual Studio)
Program Location:
   at Microsoft.ReportingServices.XmlaClient.AdomdDataReader.CompletePreviousRow()
   at Microsoft.ReportingServices.XmlaClient.AdomdDataReader.InternalRead()
   at Microsoft.ReportingServices.XmlaClient.AdomdDataReader.Read()
   at Microsoft.ReportingServices.QueryDesigners.SapBw.Controls.QueryBuilderClientControl.QueryExec.ThreadExecution()
Edited by: huaxianz on Mar 30, 2011 6:12 AM

Answer 1

Hello Shashi,
derivation can only work, when Profit Center Group is not in the aggregation level. When you have more than one hierarchy on Profit Center (you are using in queries) I suggest that you create one hierarchy on Profit Center with Profit Center Group as foreign characteristics to be used in characteristic relationships. This is then a fixed hierarchy that defines what can be derived from Profit Center for all hierarchies you are using in queries.
Then you need no exit implementation. In addition, the hierarchy used in the characteristic relationship defines the admissible combinations in the cube. The hierarchies used in the query are only views on the cube data, in fact the foreign characteristics in hierarchies used in queries are treated as text nodes.
Regards,
Gregor