Restrict lowercase and special characters when adding new records

Hi experts,

I am looking to restrict fields from the Item master data and business partner master data fields to only accept CAPTIALS and non special characters such as /,.-'+=!` etc...

e.g. ITEM001 is allowed and item-001 is not allow when adding new records.

In the past users forgets to follow company rules and this causes a mess with lowercase item codes and BP codes such is annoying when creating reports.