ResourceAccessAuthorizationException when exchanging data between PowerQuery and Python

Hi,

Did you try sending a small payload and see what happens? Make sure it is not a file size issue.

Also, check if it fails on the desktop or not. In Desktop, you can ignore the privacy level to make sure it's a privacy issue. 

Also, to hash did you try crypto.CreateHash? Crypto.CreateHash - Custom Connector Function | PQHow

Note: You need to import or define the crypto.createhash function in your Power Query environment. This requires advanced setup.

Another point, if you want to try a different approach(without python) this post might be helpful. powerquery - How to hash a string column in power query - Stack Overflow