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W
WTMA
March 27, 2026
Question

"An application error has occurred while processing your request" when trying to convert an Estimate with a deposit to an invoice

  • March 27, 2026
  • 1 reply
  • 24 views

We just recently switched from QBD to QBO. Now we've run into an issue where if we generate an Estimate, take a deposit, then try to convert it to an Invoice we get the error: 

 

"An application error has occurred while processing your request"

 

And can't save it. It happens every time, it doesn't matter what browser is being used, clearing cache/cookies does not help, incognito mode doesn't help, and even trying to convert it under a different user account on a totally different computer doesn't help. 

 

The only thing that seems to work is converting the Estimate under the administrator account which works (usually except for 1 time) but isn't practical for our sales clerks to have to have an administrator log in every time.

 

The issue is consistent and can be replicated every time with a new estimate. If you remove the deposit, the estimate can be converted to an invoice and saved but obviously the deposit is gone. I think removing the deposit, converting, then putting back in the deposit would be a work-around but still inconvenient at best.

 

Any thoughts?

1 reply

E
Ethel_AQuickBooks Team
QuickBooks Team
March 27, 2026

Hello there, @WTMA. Since you're running into an error when trying to turn an estimate into an invoice, it will be a good idea to reach out to our QuickBooks Live Support Team for further assistance with this unusual behavior.

 

To reach out to them, just click the Help button in the top-right corner of your QuickBooks Online screen. Then, click on the Assistant tab and type Talk to an expert to see your support options. You can choose how you want to get help, whether it’s through Chat or a Callback.

 

For their available hours, you can read this article: Get help with QuickBooks products and services. Don't forget to select QuickBooks Online as your product.

 

You can always comment below if you need further assistance in converting an estimate to invoices.

W
WTMAAuthor
March 27, 2026

Thank you but I did that already yesterday. They had no fix and said they'd look into it. But that seems to be their answer for every issue and I was hoping someone else had a better suggestion. 

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