أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
people on front end ( directly ) interacting with customers should have a humble, listening, understanding properly, attitude towards the customer.
customer feedback should be taken every time you come across with them.
There are lot of other things that can be put into consideration depending upon the nature of the business.