You cannot change an invoice number once your invoice is created. You can specify/change an invoice number only at the time of creating a new invoice. In order to create a new invoice, click on "Edit | New Invoice". The invoice number automatically increments by one with every new invoice created.
How do I change the Invoice Number of an existing invoice? (KB012045)
Modified on: Mon, Jun 9, 2014 at 11:00 AM
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