Date Range

On the Invoice, Debit and Credit Memo Sequences form, enter the Start Date and End Date to define the range of dates during which invoices with these sequence numbers can be used. This field is enabled only when adding a record. If you do not use all the numbers in the sequence by the end of the defined date range, you must close the sequence to indicate that the rest of the numbers cannot be used.

Note:  Make sure none of the date ranges for a type overlap each other.

On the Void Unused Invoices form, enter the Start Date and End Date. These dates, in combination with the category, determine the sequence for which you will be voiding unused numbers.