I am trying to clone a web map from a Portal A to a Portal B but I keep getting this error:
ItemCreateException: ('Failed to create Feature Service xxxxxx: You do not have permissions to access this resource or perform this operation.\n(Error Code: 403)', None)
I am connecting to both the source portal and target portal with user admins.
I am currently suffering from the same error. I was cloning items as an admin and it worked for a while and then just stopped and started giving me this error. I tried on different machines, updated my python environment, tried cloning different items, and nothing works anymore. Did you ever get it fixed?
