Welcome to the KNIME Forum. Most cloud apps have limits on how much data you can send at one time. It will probably let you continue writing data again after some time, but you’re being throttled by Sharepoint:
Thanks @wkhan for your response and the provided information!
Indeed after some time (don’t remember how many days - wasn’t many though) it allowed me to write data to the sharepoint again. Truth is I had sent a lot of datasets to the sharepoint because I was testing something, so probably this was the reason I got this error message.
Thanks @mlauber71 for your suggestion!
I did it with the chunk loops way. but the microsoft authentication token expired as it was still taking a lot of time to write all the data (even in chunks) to the sharepoint.
However what I did and worked well, was that I put the Microsoft authentication node within the loop so it gets updated every time a chunk dataset is written to the sharepoint and therefore it doesn’t take to long to expire.