How do I put an expense I added back under banking? My collegue needs to review it first.

I'd be glad to join you here and help with your banking concerns, claudia34.

There's an Undo button to send the transaction back to the For review tab. This will remove the category that you assigned to it when you matched or added it in the online banking. Let me show you how:

1. Go to Transactions menu and select Banking.
2. Proceed to the Categorized tab.
3. Look for the transaction that you want to reverse, then click Undo under the Action column.

Once done, go back to the For Review tab and let your colleague review it.

Please see these articles for more details: Unmatch Downloaded Bank Transactions or Move Them to Another Account.

Let me also share these articles for additional guidance when working with your banking transactions: 

• Undo or Remove Transactions From Reconciliations in QuickBooks Online
• Exclude a Bank Transaction you Downloaded into QuickBooks Online

Don't hesitate to reply and let me know if that helped you send the transaction back for review. We're always here to help if you need anything else.