Web.Contents failed to get contents when connecting to Dataflow

[PowerBI_Mallow]

 I am connecting my dataset to Dataflows (source for the dataset is dataflow). When I do the refresh the dataset refresh fails with the error as stated above. 

How to solve this error?

[ibarrau]

Hi. That's reaaally weird. I have seen 429 for other examples. 429 means too many requests. Just to consider if you are requesting a lot of requests to the dataflow. If you were sending a lot of requests, wait for some hours and try again.

I have seen the 429 in another examples regarding limitations. For example, if the dataflow is taking more that than a shared dataset pro workspace can take, then 429.

You can test the dataflow ETL copying the tables to a power bi desktop. Refresh it in there to check the data model size (you can use dax studio or check the file size as an aproximation).

I hope that helps,