Has anyone created a custom report which lists backordered items on Estimates. The Sales Order feature really does not have functionality on QBO, it is useless to us.

Thank you for reaching out here on the Community page, @bethanne68. I understand it would be convenient to have the backorder feature for managing the list of product item on estimate in QuickBooks Online (QBO). I'd be glad to help.

Before we begin, could you please share how you have tracked back-ordered items on Estimates? Any additional details you provide will be appreciated, as this will help me offer the most suitable solution for your needs.

In the meantime, if you've repurposed the functionality of Estimates for tracking backorder items by utilizing the Memo or Num filters, we can generate the Estimates by Customer Report.
You can follow these steps:
 

1. Sign in to your QBO account.
2. Go to the Reports tab.
3. Choose Estimates by Customer.
4. Pick the Filter tab.
5. From the dropdown, pick the following:
   1. Memo/Description (if you add memo for each of the estimates you're using for tracking backorder items)
   2. Num (if you use specific numbering for your estimates).

Additionally, since direct tracking of backorders on Estimates is unavailable, you might consider exploring third-party applications that specialize in managing backorder items and integrate with QuickBooks. You can find such applications in the QuickBooks App Store.

Moreover, you can check this linked article on how to export a report and use them outside your QBO account.

Get in touch with us if you need further assistance regarding customizing your reports. We'd be glad to help.