Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now
We have a connection to on-prem SSAS that is failing refresh. After adding the mapping for the user to convert user.name@company.com to AD\user.name it is still failing although the error in the refresh now reads as follows:
This is odd because I have not added two \\ in the mapping and the test at the gateway datasource looks fine.
Data source error{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[{"code":"DM_ErrorDetailNameCode_UnderlyingErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"DM_ErrorDetailNameCode_UnderlyingErrorMessage","detail":{"type":1,"value":"AnalysisServices: Analyseur XML for Analysis : La valeur 'DIR\\user.name' de la propriété XML pour Analysis Services 'EffectiveUserName' n'est pas valide."}},{"code":"DM_ErrorDetailNameCode_UnderlyingHResult","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourceKind","detail":{"type":1,"value":"AnalysisServices"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourcePath","detail":{"type":1,"value":"vd522703;Pioneer_Analysis"}},{"code":"Microsoft.Data.Mashup.ValueError.Reason","detail":{"type":1,"value":"DataSource.Error"}}],"exceptionCulprit":1}}} Table: XXX
Does anyone know if this a bug or how to resolve?
Thanks for reaching out to us.
please check the place in the picture below
Manage your data source - Analysis Services - Power BI | Microsoft Learn
Best Regards,
Community Support Team _Tang
If this post helps, please consider Accept it as the solution to help the other members find it more quickly.
Check out the November 2025 Power BI update to learn about new features.
Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!