If you are on database 19c, please read the post Automating R12.2 EBS Clones with Database 19c
While cloning has become more complex in R12.2, Oracle has provided mechanisms to assist with simplifying the process for the Applications DBA. I have scripted a method for automating repeated clones. This post will be updated as I continue to improve the process including providing copies of sample scripts.
For now, here is the current version of the presentation. The final version and sample scripts will be uploaded in the next few weeks, so watch this post for updates.