IT Shop event through custom script

Dear All,

At the moment I am working on changing a feature in the IT Shop during the Request phase through a custom script in Designer, but I still haven't figured out how to write and invoke it.

Specifically, I need a check on the specifications of the assets requested at the request submission time and the generation of an event in the IT Shop if the request does not comply with the rules specified in the script.

Currently, I'm using One Identity Manager v 8.1.4.

Thanks in advance,

Alessio