posted
Welcome to the Community, @finishright1. I'm here to provide some insights about voiding an invoice in QuickBooks Online (QBO).
QBO won't send an email to your customer as a notification that their invoice is voided. However, you can manually email the transaction to them and indicate in the Email body section that it is voided. Refer to the screenshot below for a visual guide:
Then, for reference about the process, feel free to check this article: Void or delete transactions in QuickBooks Online.
Additionally, you can also customize your invoice forms to include only the details you need and remove those you don't. To get started, check out this link for the detailed guide: Customize invoices, estimates, and sales receipts in QuickBooks Online.
If you have any other concerns about managing your customer's invoice, please don't hesitate to post again here. I'd be happy to lend a hand to achieve your goal. Have a good one and keep safe,
