The purpose of this screen is to allow you to generate large numbers of cards in bulk. This is typically used for a calling card operation.
When the cards are created, they will appear in a list below and they can be exported to a CSV or XML file for fulfilment via a printing company, or offered for sale via a website.
All the cards in each batch created will share the same random number as the surname. You can use this random number in the search and batch update options of List Customers to (de-)activate entire batches of cards.
It is worth delaying generating very large batches of customers until your server is quiet, as it is a resource intensive operation and may adversely affect call setup times.
For a better explanation of each of the fields look at the Create Customer instructions.