I have a Flow run once by system administrator to update a custom field in all existing records. But I do not want to update the Last Modified By or Last Modified Date fields. How can I do this? I believe it can be done in Data Loader.
I tried this: Give system administrator Set Audit Fields on Record Creation permission (has no effect, for creation only it seems)
In my flow, from in a loop I call Get Record, then set the custom field with an Assignment element, and then call UpdateRecord.
I added these fields to the Get Record element but did not change them in the Assignment element.
Currently the changes have no effect and the last modified date gets updated.