Power BI Data Refresh Error

[Kodonnellm]

Hello,

I am getting this error message when trying to refresh my Power BI data visuals. However I want to make it very clear. This only started to occur when I when into my Microsoft list file and cleared out the data. I did not make any changes to any columns. I simply removed data, and added new data. Looking online I saw that this could be an issue with the type of column but as I mentioned nothing has been changed in that regard. 

[Kodonnellm]

Where can i see the error?

[Anonymous]

Hi @Kodonnellm ,

Try manually specifying the data type for each column. Check to see if any of the records cannot be converted. Pay particular attention to records that convert text to date and datetime types.

You can turn on column quality under Preview All Data to check for conversion type errors.

Using the data profiling tools - Power Query | Microsoft Learn

You can also check which column is the problem by converting the columns to text one at a time and then refreshing.

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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[Kodonnellm]

That was helpful thank you for that note. However none of my columns are showing any error %. They are either valid or empty. 

[Idrissshatila]

Hello @Kodonnellm ,

so what I suggest you do is go to this table in Power query and check it there, it should lead you to which column is giving the error.

maybe the error is that there was data added in a certain column that doesn't match the column type.