A Key to CRM Success - is THE CUSTOMER
As part of your CX strategy & plan, you should reach out to your customers
I Say this because many companies implementing CRM don't.....
Ask them
So, as part of how you build and configuration of your SugarCRM deployment - make sure you ask your customers what they want.
It is recommended that you ask some of your best customers AND ask some of the cranky ones too - you are bound to learn A LOT especially from the grumpy ones.
This feedback will enable you to really focus on making your clients happier - by serving them the way they want to be served.