Is there a recommended way to check for existing parent before creating a new parent from child table?

Discussion created by pruppert on Oct 26, 2015
Latest reply on Oct 26, 2015 by pruppert

If I had the traditional Customers (parent) and Orders (child) tables and had the ability to create a new parent Customer record from the child Order table, is there a recommended way of automatically checking if the Customer already exists? I want to prevent accidental creation of duplicate Customers in the parent table.