I have also started looking into this today.
This original post was made a while ago, so I’m not sure if things have changed?
The reason I ask is that there is another similar post here and indeed it is possible to change this field inside the UI.
Which led me to look again at the API documents.
On this page
it states "meta.created_at string Optional " which seems to confirm that it is possible to update this via the API, however when I try this, I receive a message “Meta is not a permitted key”.
As of February 2023 is it possible to update these using the API? Or is the documentation misleading me?
Happy to drop a support request if it’s possible and I shouldn’t be seeing this error.