Thank you for posting here in the Community, @C12.

You can exclude and upload your transactions again to map them correctly. Let me help you how.

You'll need to upload your transactions manually and map them to categorize them properly. But before that, you need to exclude those imported transactions to avoid duplication.

Here' how you exclude your transactions:

1. On the left panel, click on Banking.
2. Select the imported transactions.
3. Under the Batch Actions drop-down, select Exclude Selected.

Once done, you'll need to download your bank transactions again from your bank's website. You may download your transactions with these QuickBooks accepted file types:

• CSV - Comma-Separated Values
• QFX - Quicken
• QBO - QuickBooks Online
• OFX - Microsoft Money

Lastly, you can now upload your transactions from the Banking page. Feel free to follow these steps:

1. On the left panel, click on Banking.
2. Under the Update button, select File Upload.
3. Click on Browse.
4. Select your downloaded bank transactions, and click on Next.
5. Under the QuickBooks Account drop-down, select the bank account.
6. On the Map Transactions page, correctly map your transactions.
7. Click on Let's go! to review your transactions.

I've attached an article for your reference: How to Import Bank Transactions Using Excel CSV Files?

Fill me in if you have other questions about your transactions. I'll be sure to get back to you. Have a good one!