Hello there, @mgp13.
Before we proceed with a browser troubleshooting step, you can review if there is an estimate transaction that already uses the number as stated in the error message.
You can run an Estimate by customer report.
Here's how:
- From the left menu, go to Reports.
- Enter in the search field Estimates by Customer.
- Click Filter.
- Under the Filter dropdown, choose Estimate number.
- From the Operation dropdown, select equals.
- Enter the estimate number you want to use in the box for the Value.
- Click the X button.
If no estimate transaction that uses the same number and you're still getting the same error when creating an estimate, I recommend performing browser troubleshooting steps.
The stored files in your browser are typically the source of unexpected behavior or failures in QBO. Your cache saves the files from many websites you visit, so you can quickly load the pages the following time. The browsing speed of websites like QBO may be impacted if the cache is retaining too much data.
It's a good idea to check for issues brought on by a full cache when browsing anonymously because doing so prevents the cache from recording your browsing data. You may also try to use other browsers.
- Chrome: Press Ctrl + Shift + N
- Internet Explorer and Mozilla Firefox: Press Ctrl + Shift + P
- Safari: Press Command + Shift + N
If the steps above will not work, you can use supported browsers as an alternative.
If the given procedures are successful, I advise you to clear the cache in your browser to avoid utilizing outdated forms, safeguard your data, and improve the performance of our programs on your computer.
If the issue persists, I recommend contacting our Customer Care team. You can request for a screen-sharing session so they can investigate further the reason of this issue.
Here's how:
- Sign in to your QuickBooks Online company.
- Click Help (?).
- Choose either tab to get started:
- Assistant: Get quick, personalized answers. Select a suggested option or type a question or topic you need help with. If you decide you need further help, you can still Talk to a human.
- Search: Search the QuickBooks Online knowledge base directly, or select Contact Us and choose a way to connect with us:
- Start a chat with a support expert.
- Get a callback from the next available expert.
For future reference, you can read these articles about converting estimates to invoice and recording invoice payments in QuickBooks Online:
Don't hesitate to click the Reply button below if you need further assistance in managing estimates in QuickBooks Online. I'm always here to help. Have a great day.
