Dataflow Merge and Aggregate

[dm1904]

Hello, I have merge two tables together in a datafow. When I try to expand the resulting column I do not get the option to 'Aggregate' like I would do in desktop. I've tried adding the below as a custom step in the dataflow

= Table.AggregateTableColumn(#"Merged queries 1", "Planned Dates", {{"DOCUMENT FILE NAME", List.NonNullCount, "Count of DOCUMENT FILE NAME"}})

But get this message "Expression.Error: The name 'Merged queries 1' wasn't recognized. Make sure it's spelled correctly."

What am i doing wrong? Many thanks

[v-juanli-msft · Accepted solution]

Hi @dm1904 

I can make it work on Power Query Web part.

Please check if #"Merged queries 1" is the last step name in your scenario.

Or you could take the following as a workaround:

1. merge queries,

2. expand the value from another table

3. groupby the table as below

Best Regards
Maggie

Community Support Team _ Maggie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.