When searching for a customer you have to enter it exactly as it is in the customer record and it would be nice to have more flexibility.
For example: since we can't have multiple first and last names in a customer record we frequently create customers in the format of "First Name 1 & First Name 2" and "Last Name 1 & Last Name 2".
When we search for that customer we have to remember the order of the names to have it return any results. If it's First Name 2 there talking to us we can't find their record easily in POS entering just their name information.
We could use email or phone, but again, without the ability to enter multiple on a customer record it brings up the same challenges.