Hi,
Would like to understand first the purpose of this new custom field for which you are trying to create Alias.
Are you looking to create a alias so that you can add it in CA Business Intelligence for reporting?
Any other reason?
Also, please let me know the following
1. Name of the custom column that you have created and on which table (call_req?)
2. Do you want to use for request and incident both or just incidents?
Regards,
Hemant G