How can I get an email notification when an invoice is overdue? I don't want to send auto-reminders to the client, I want to get notified myself.

I see you want an email notification for overdue invoices, @basak1. Let me share some thoughts about it.

For now, the ability to send alerts for past-due invoices is unavailable in QuickBooks Online. As a result, I encourage sending us feedback on this. Your suggestions will be extremely beneficial to our product engineers as they work to improve your QuickBooks experience. I'll walk you through how:

1. Click on the Gear icon. 
2. Select Feedback.
3. Fill in with your product suggestions.
4. Once done, click on Next to send feedback.

Additionally, you'll want to view the list of overdue invoices on a report. Here's how you can do it:

1. Open the Sales menu.
2. Choose All sales.
3. Go to Filter.
4. Select Over Due and set the date to the last quarter.
5. Lastly, click on Run Report.

In case you want to personalise the report, see this module for guidance: Customise reports in QuickBooks Online. After that, you can also save the edits you make by memorising the report.

You're always welcome to reply back if you need more help with invoices or QuickBooks. The Community we'll be available 24/7 for assistance. Have a good one!