Let me share additional information about adding check numbers to transactions in the bank feeds to QuickBooks Online (QBO).
For now, it is not possible to add a check number to a transaction in the bank feed. However, you can manually add a check number to the memo field to keep track of it.
Here's how to add check numbers on the memo field:
- Go to the Transactions Tab.
- Under Bank transactions select the correct Bank transaction.
- Click on the For Review tab.
- Select the right transaction.
- Under the memo tab, you can type the check number.
- Then click the add button.

You can also see this article that details the process: Categorize online bank transactions in QuickBooks Online
Feel free to leave a reply below if you have additional questions about transactions in the bank feeds. Keep Safe!