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SELECTDBA's avatar
SELECTDBA
Advocate I
6 years ago

SSAS Analysis source through blank query in a Dataflow

Hello all,

 

We're having difficulities adding an on-prem SSAS analysis service connection through a blank query on a Dataflow.  I've added the correct Power Query:

 

let
    Source = AnalysisServices.Database("xxxx", "xxxxx", [TypedMeasureColumns=true, Implementation="2.0"]),
    xxxxx1 = Source{[Id="xxxxx"]}[Data],
    xxxxx2 = Invoice1{[Id="xxxxx"]}[Data],
    #"Added Items" = Cube.Transform(xxxxx2,
        {
            {Cube.AddAndExpandDimensionColumn, "[BUL]", {"[BUL].[BUL].[BUL]", "[Business Unit Line].[BUL Name].[BUL Name]"}, {"BUL.BUL", "BUL.BUL Name"}}
        })
in
    #"Added Items"

 

After we do that we get the following error after using the correct credentials:

 

Received error payload from gateway service with ID xxxxxxx: Internal error: MashupCredential for AS data source that uses Windows authentication needs to have an effective user name authentication property.

 

 I appreciate any help on this.  I will add that we already voted to add SSAS on-prem as a datasource direct in Dataflows, so we don't need to use blank queries, but we need something in the mean time.  Thanks.  

Dataflow
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6 Replies

  • GilbertQ's avatar
    GilbertQ
    Super User
    6 years ago
    Hi there

    What if you try and create the query in Power BI Desktop first?

    Also remember that when setting up the Gateway the Domain\UserAccount has to be an Admin on your SSAS Server for the queries to work.
    • SELECTDBA's avatar
      SELECTDBA
      Advocate I
      6 years ago

      Thanks for the response, GilbertQ.  I did get and try that query in Power BI Desktop, and it worked fine there (the account is an admin on the SSAS box).  Is this something you have ever got to work?  Thanks again.  

      • GilbertQ's avatar
        GilbertQ
        Super User
        6 years ago
        Hi there

        Have you mapped the username on the data source in the Gateway on the Power BI Service?
  • v-lid-msft's avatar
    v-lid-msft
    Community Support
    6 years ago

    Hi SELECTDBA ,

     

    Based on this document, 

    The following list shows which connectors you can currently use by copying and pasting the M query into a blank query:

    • Azure analysis Services
    • Adobe Analytics
    • ODBC
    • OLE DB
    • Folder
    • SharePoint Online folder
    • SharePoint folder
    • Hadoop HDFS
    • Azure HDInsight (HDFS)
    • Hadoop file HDFS
    • Informix (beta)

     

    It seems the On-Premises SSAS does not supported to used with Blank query in Dataflow.

     

    We also tried to connect with a AS query in Dataflow with a gateway, but we get a InvalidDatasourceTypeForSkipTestConnectionError 

     


    Best regards,

     

    • SELECTDBA's avatar
      SELECTDBA
      Advocate I
      6 years ago

      v-lid-msft thanks for the response and the link.  I can't help but think how big of a mistake this is on Microsoft's part - I wouldn't assume they would have an oversight this big, so maybe there is a reason?  Anyway, what do you think about a OLE DB connection to SSAS?  I tried that, but I was getting a different error.  I wasn't sure if anyone had success there.  Thanks.