Greetings,
I noticed that you are allowed to duplicate Product to Category mappings on the admin side. I want to prohibit this by stopping the action and warning the user that they cannot complete such an action and let them pick another Category. I have had a few ideas on doing so but wanted to see if anyone else had anything. The code I have thus far stops the duplication but fails on the message piece at the moment. Any help would be appreciated. Thanks.
Kindest Regards,
Chad Johnson