You use the Customers screen to add customer records. For each new record you assign a unique customer number, up to 12 characters, including letters, numbers, and symbols. You may be able to continue with your present system of assigning customer numbers.
If you do not have a logical method of assigning customer numbers, you should develop a system before you add your customer records to Accounts Receivable. Your system should let you organize the records as you require, such as alphabetically, by region, and for reporting purposes. The system should also allow for expansion as your business grows.
If you use national accounts, you should also consider using some portion of the national account code to begin the customer numbers that belong to the national account.
For information about assigning customer numbers, see About Accounts Receivable Coding Schemes.