Hi, @beautifuldecisio.

Once an account is connected to QuickBooks Online (QBO), transactions are automatically downloaded. There are three areas we can double-check for the missing transaction. I'm here to help you find the missing transaction so you can proceed with categorising it and reconciling your account.

First, we can look for it on the Bank transactions page. You can follow these steps:

1. Go to Bookkeeping, select Transactions, then select Bank transactions.
2. Select the bank account or credit card tile that you want to search.
   • Newly downloaded transactions will be in the For review tab.
   • Recently categorised transactions will be in the Categorised tab.
   • If you mark a transaction as personal or a duplicate, it goes to the Excluded tab. QuickBooks won't add excluded transactions to your accounts. If you want to include it, select Undo from the Action column.

The next area we can check is the Account History of the account you're reconciling. Here's how: 

1. Go to Bookkeeping and select Chart of accounts.
2. Find the account you want to review. Then, in the Action column, select Account history.
3. Select the Filter icon and select the filters you want to apply. You can use the Find field to search by amount, reference number, or memo.
4. To remove a filter, select the X next to the filter name.
5. Select Apply.

Lastly, we can check if QBO has placed the transaction into the Uncategorised Income or Uncategorised Expense account. To check these accounts, here's how:

1. Go to Bookkeeping and select Chart of accounts.
2. Look for the Uncategorised Income or Uncategorised Expense accounts.
3. Select Run report.
4. Look for your missing transaction in the report.

Once you find the missing transaction, you categorise it and proceed with the reconciliation process.

If you encounter challenges reconciling accounts in QBO, I'm adding these articles as future guides:

• Fix issues the first time you reconcile an account in QuickBooks Online
• Fix issues with your beginning balance for accounts you've reconciled before

We'll be here in the Community if you need further assistance adding missing transactions or reconciling accounts in QBO. We'll do our best to assist. Take care!