Customer ID on Import

When importing a new customer (Tools -> Import -> Import Customers), it does not let you choose a specific Customer ID.

The Customer ID is auto-assigned, so that can't be set manually, but you can set a Customer Code Number. You can then do customer updates with the same import tool by checking the box Update Existing Customer Record When Customer Code Matches.

You can have the system automatically generate customer codes by turning on the option Admin -> Billing -> Company Options -> Defaults -> Customers -> Generate Customer Code For New Customers. You can set the initial customer code to use with the option Next Customer Code on the same page.

You can have the customer code displayed in auto-complete boxes by turning on the option Admin -> Billing -> Company Options -> General -> Show Customer Code In Auto Complete Boxes.