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

July 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more

Reply
Matan
Frequent Visitor

Copy/Paste Query Code from PowerBI Desktop UI to Dataflow Error

Hi,

 

I'm following Miguel Escobar "Combine or Append Data: Optimal Combination Pattern" , Source files and blog in the link  - https://www.poweredsolutions.co/2019/04/30/combine-or-append-data-optimal-combination-pattern/

Everything works fine when using the code in the PowerBI Desktop, but when trying to copy/paste the code to new dataflow entity I'm getting error.

 

Code:

 

 

 

let
fnCSV_Read = (MyFile as binary) => 
Table.PromoteHeaders(Csv.Document(MyFile, [Delimiter=",", Columns=4, Encoding=1255, QuoteStyle=QuoteStyle.None]))
in
let
    Source = Folder.Files("C:\Users\Matan\Desktop\Sales"),
    #"Removed Other Columns" = Table.SelectColumns(Source,{"Content"}),
    Content = List.Transform(#"Removed Other Columns"[Content],Binary.Buffer),
    Custom1 = List.Transform(Content,fnCSV_Read),
    Custom2 = Table.Combine(Custom1)
in
    Custom2

 

 

 

 

Power BI Desktop Screenshot:

SharedScreenshot.jpgSharedScreenshot.jpg

 

Power BI Servic Screenshot:

SharedScreenshot.jpgSharedScreenshot.jpg

2 REPLIES 2
v-eachen-msft
Community Support
Community Support

Hi @Matan ,

 

Your folder is on premises, you need to add it in your gateway.

And you could split your codes as two parts: query and invoke function.

 

 

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

Hi @v-eachen-msft ,

 

My folder is already configured in the getway.

The problem is indeed with the code syntax which work well in the desktop version and fails to do so in the service unless I split the code. There is any vision to make it work in the near future?

 

Regards,

Matan Baruch

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

60 days of Data Days Carousel

Data Days 2026

Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.