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

Data Days is here! Join us now for 60+ days of learning, challenges, and connection. Learn more

Reply
Anonymous
Not applicable

Data Flows - Error: Data Source Error : DataSource.Error: Web.Contents failed to get contents

We have several dataflows in Power BI service and often I get a failed refresh of those dataflows. They fail randomly - when I refresh it manualy or by schedule sometime it is succeed and sometime it is failed with this error:

 

Error: Data Source Error : DataSource.Error: Web.Contents failed to get contents from 'https://team.xxx.com/sites/xxxxx/_api/web/lists/getbyid('11513b1a-523e-4c6a-8f9c-3f77fcac5aa6')/Rend...' (429): DataSourceKind = SharePoint DataSourcePath = https://team.xxx.com/sites/xxxxx Url = https://team.xxx.com/sites/xxxxx/_api/web/lists/getbyid('11513b1a-523e-4c6a-8f9c-3f77fcac5aa6')/Rend.... RootActivityId = 32f0c3c4-cbcb-41d9-b609-47a873649f62.Param1 = DataSource.Error: Web.Contents failed to get contents from 'https://team.xxx.com/sites/xxxxx/_api/web/lists/getbyid('11513b1a-523e-4c6a-8f9c-3f77fcac5aa6')/Rend...' (429): DataSourceKind = SharePoint DataSourcePath = https://team.xxx.com/sites/xxxxx Url = https://team.xxx.com/sites/xxxxx/_api/web/lists/getbyid('11513b1a-523e-4c6a-8f9c-3f77fcac5aa6')/Rend... Request ID: 227777d1-d36d-d728-0eec-c6848a0ff9bc.

 

There is a sharepoint folder as a source and that's it.

Do you have any ideas why it happens and how I can fix it?

2 REPLIES 2
Anonymous
Not applicable

Thank you. I did not find the solution how to fix it, but the acceptable workaround was to schedule 3 refreshes instead of 1.

ibarrau
Super User
Super User

Hi. You might need to read more about the web page or API you are connecting. The lines contain a 429 error. The 429 means "too many requests". You may be exceding the amount of requests to the API in X interval of time.

That's why it might work sometimes and others might fail in that interval.

I hope that helps,

 


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

Happy to help!

LaDataWeb Blog

Helpful resources

Announcements
Fabric Data Days is here Carousel

Fabric Data Days 2026

Don't miss out on Data Days, June 15 through August 7. Learn Fabric, Power BI, SQL, AI and more.

May Power BI Update Carousel

Power BI Monthly Update - May 2026

Check out the May 2026 Power BI update to learn about new features.

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.