The Contact ID field uniquely identifies each Contact record to identify the Customer to which the Contact belongs.
A Contact ID is automatically assigned to each Contact. The numbers are assigned in sequence starting with the next available number.
When the Contact Code is displayed in the Contact Lookup List ID column, the Customer Number is added to the beginning of the Contact Code followed by the "." character . For example, if Customer Number 24 has a Contact with Contact ID 1003, it is displayed as 24.1003.
Customer Database - Main Screen - Number
Contact Database - Main Screen Fields