I have a list containing documents, which updates to another list when the document is changed. When the document is first created, the Created By (Author) and Modified By (Editor) fields are accurate, but after running any Flow the name comes in as my own.
I understand this as a default behavior, but it would be handy for our tracking purposes to keep the original data in these fields and have it continue through the flows. Just being able to pull in the Created/Modified By in the original GET and passing them to the Update would be enough.
I have seen answers on here that this isn't possible in Sharepoint, but this does not seem to be 100% accurate as you CAN change Editor and Author via HTTP request. I currently have this working in one of my flows, but have found it to be a little unreliable and composing the JSON is a little unwieldy.