Issue with adding a new column in PowerBI Dataflow

[Anonymous]

I created a Dataflow in PowerBI Service. I was trying to create a new column to one of the tables. When I set the Column header as blank and tried to cancel it, I got the error message box. But when I press "Close" button on the box, it does not close and the message box stays there no matter how many times I press the button. I then quickly had to press a character before I was finallly able to close the box. 

[v-xiaoyan-msft]

Hi @Anonymous ,

According to the information you provided, “When I set the Column header as blank ”

this is not allowed in Power BI. When you try to do this, it pops up the error message window.

It is by design.

Best regards.
Community Support Team_ Caitlyn