Where can you find letters to send out to customer for overdue invoices that are unpaid?
Good to see you here in the Community, @fgrokc! Let's go through some options so you can get those unpaid invoices paid.
When logged into your QuickBooks Online account, you have a couple of ways to remind your customers of unpaid invoices. Here's how to do this manually:
Select the Invoicing menu, then Invoices.
Find the invoice you'd like to send a reminder for.
From the Receive Payment dropdown, select Send reminder.
Customize your message and select Send.
You can also automate this process right within your settings in your account.
Go to Settings ⚙ and select Account and Settings.
Select the Sales tab.
In the Reminders section, select Edit ✏️.
Turn on Auto invoice reminder.
Set your first reminder. Select or enter the date you want to send reminders. Note: You can schedule and send email reminders up to 90 days before or after the invoice due date.
Select Create reminder to create second and third reminders as needed.
You can read this article for more information about automatic reminders: Automate invoice reminders in QuickBooks Online. If you have any further questions or need any help with these steps, please reach out back here to me and I'd be happy to help.