Prevent from deleting Task in MS Project Pro

Let me back up for a minute. Your original question relates to task deletion but then you said you wanted customization of the Enterprise Global template to prevent task deletion. Unless I'm missing something, task deletion has nothing to do with the Global file. The Global file, local or enterprise, sets basic Project options, views, calendars, and other "global" parameters. It does not control tasks or resources, those are unique to a specific Project file.

So please explain again what the real issue is.

And for your reference, there is no MS Project On Premises Product Group unless you have a special support contract with Microsoft (i.e. paid support contract). This forum is for technical support issues but it is not manned by Microsoft personnel, it is manned by volunteers like myself.

John