Skip to main content
Showing results for 
Search instead for 
Did you mean: 

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

New Member

Can't change the definition of aggregation table and can't create the new one.

I have a DirectQuery model. One fact table, four dimension, very simple. All dimension tables have one-to-many relationship to the fact table.

I created aggregation table in the same data source. I defined the aggregation in the model. The aggregation has no relationship to any table. Everything was ok, till today.

I've just opened the definition of the aggregation in PBI Desktop and under the Sum column I see an error message: "Detail column cannot be aggregated to one or more Group By columns using strong relationship".

I can't change the aggregation, can't define the new one. The error is displayed after setting ANY (even first) group by column.

What's up?


New Member

I found temporary solution. You can create an aggregation in Tabular Editor with "Alternate Of" column property. 

Everything then works, so it seems like Desktop bug.


HI @GregSt2,

I'm glad to hear you find the root casing about your question and share them here. I think they may help others who faced the similar issues.


Xiaoxin Sheng

Community Support Team _ Xiaoxin
If this post helps, please consider accept as solution to help other members find it more quickly.

Helpful resources

Europe Fabric Conference

Europe’s largest Microsoft Fabric Community Conference

Join the community in Stockholm for expert Microsoft Fabric learning including a very exciting keynote from Arun Ulag, Corporate Vice President, Azure Data.

July 2024 Power BI Update

Power BI Monthly Update - July 2024

Check out the July 2024 Power BI update to learn about new features.

July Newsletter

Fabric Community Update - July 2024

Find out what's new and trending in the Fabric Community.