Hi, I have a dataflow that worked for 3 days, from today this error occurs suddenly, nothing has been changed in the source and steps. Why is this happening? This is the first time I encountered this error.
Error: Data Source Error : DataSource.Error: SharePoint: Request failed: The remote server returned an error: (429). (429 TOO MANY REQUESTS)
429 error indicates that too many requests have been sent in a certain period of time. When many refresh plans are refreshed at the same time, the model used for refresh will be loaded. Once there are too many models in the memory, the memory will become full. The model generated by the subsequent refresh operation cannot be loaded and enters a queued state, so that the report will be loaded slowly or fail.
You can try to refresh this data source in some other time ranges to check this issue again.