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

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
aAmirkHan
Helper II
Helper II

Slow data refresh in Power Query

Hi,

 

I am updating data type as (changed type) of each column in Power Query. So it is taking huge time to update each field in column. However, I am fetching data from sharepoint in Power Query?

 

Can you please suggest me how can it fixed?

 

aAmirkHan_0-1687332168257.png

 

 @amitchandak 

1 ACCEPTED SOLUTION
Anonymous
Not applicable

Hi @aAmirkHan ,

 

It seems that you are experiencing slow data refresh in Power Query while updating data type of each column. According to, slow data refresh in Power Query can be caused by slow data source, slow network connection, or PowerQuery. You can try to optimize your data source or network connection to improve the performance. Additionally, you can try to optimize your Power Query by reducing the number of steps or using more efficient transformations. If you are using SharePoint as your data source, you can refer to for troubleshooting tips. Finally, you can refer to and for more information on refreshing data in Power BI.

It seems that you are experiencing slow data refresh in Power Query while updating data type of each column. According to, slow data refresh in Power Query can be caused by slow data source, slow network connection, or PowerQuery. You can try to optimize your data source or network connection to improve the performance. Additionally, you can try to optimize your Power Query by reducing the number of steps or using more efficient transformations. If you are using SharePoint as your data source, you can refer tofor troubleshooting tips. Finally, you can refer to and for more information on refreshing data in Power BI.

Reference:

Best practices when working with Power Query - Power Query | Microsoft Learn

 

                                                                                                                                                         

Best Regards,

Stephen Tao

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.           

View solution in original post

2 REPLIES 2
aAmirkHan
Helper II
Helper II

Thank you very much for your update.

Anonymous
Not applicable

Hi @aAmirkHan ,

 

It seems that you are experiencing slow data refresh in Power Query while updating data type of each column. According to, slow data refresh in Power Query can be caused by slow data source, slow network connection, or PowerQuery. You can try to optimize your data source or network connection to improve the performance. Additionally, you can try to optimize your Power Query by reducing the number of steps or using more efficient transformations. If you are using SharePoint as your data source, you can refer to for troubleshooting tips. Finally, you can refer to and for more information on refreshing data in Power BI.

It seems that you are experiencing slow data refresh in Power Query while updating data type of each column. According to, slow data refresh in Power Query can be caused by slow data source, slow network connection, or PowerQuery. You can try to optimize your data source or network connection to improve the performance. Additionally, you can try to optimize your Power Query by reducing the number of steps or using more efficient transformations. If you are using SharePoint as your data source, you can refer tofor troubleshooting tips. Finally, you can refer to and for more information on refreshing data in Power BI.

Reference:

Best practices when working with Power Query - Power Query | Microsoft Learn

 

                                                                                                                                                         

Best Regards,

Stephen Tao

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.           

Helpful resources

Announcements
July 2025 community update carousel

Fabric Community Update - July 2025

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

July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.