Adding deposits from bank feed.

Thank you for reaching out about this error when categorizing a deposit in QuickBooks Online (QBO), Tom. Allow me to share troubleshooting steps to fix this.

First, could you please let me know the name of your bank? This will allow me to check our system for any reported issues related to your bank.

Also, could you confirm if a different account is selected from the Category drop-down list? For example, if the category shows Undeposited Funds, we can choose a different account to save the transaction and prevent any error message.

If the issue persists after categorizing it under a different account, I recommend troubleshooting to resolve it. Let's start by accessing your account through an incognito window to eliminate webpage-related issues. Sometimes, numerous cached files can cause the browser to behave unexpectedly. 

You can refer to these shortcut keys to open an incognito window in all supported browsers:

• Mozilla Firefox: CTRL + Shift + P
• Microsoft Edge: CTRL + Shift + N
• Google Chrome: CTRL + Shift + N
• Safari: Command + Shift + N

Once you've launched a new private browsing session, access your QuickBooks Online account and check if you can successfully categorize the deposit.

If it works, proceed to clear your browser's cache. This process will resolve the issue and help the program run smoothly. You can also use other devices and supported browsers as alternatives.

Furthermore, if you need assistance with closing your books, including reconciling payments and entries, please refer to this article: Reconcile an account in QuickBooks Online.

You can always drop by here if you have questions about categorizing bank transactions in QBO. If you happen to come across any difficulties while managing your records, reports, and taxes, let me know and I'll help you out.