Quickbooks runs invoice numbers in sequence. If you overwrite an invoice number (for example, QB may number an invoice number 2, and you may change it to 3), then QB will not remember your selection, and its next number will be 3. Under edit preferences, select to warn of duplicate numbers, and then you can fix the problem before finalising the invoice.
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Quickbooks runs invoice numbers in sequence. If you overwrite an invoice number (for example, QB may number an invoice number 2, and you may change it to 3), then QB will not remember your selection, and its next number will be 3. Under edit preferences, select to warn of duplicate numbers, and then you can fix the problem before finalising the invoice.