How do I quickly correct Quickbooks incorrectly assigning an account the check information it imported from my bank?

Thank you for posting here in the Community, Cos. Let me share more information about categorizing transactions.

When you connect your bank to QBO, it automatically downloads the transactions and will suggest a possible payee and category. In this case, you can change the suggestions anytime you want.

In the future, QBO will remember suggestions based on your previous inputs. You can follow these steps on how to change the category and payee:

1. Go to Transactions, then choose Bank Transactions.
2. Click Categorized.
3. Select the transaction, and on the Payee dropdown, choose the payee's name.
4. On the Category dropdown, please select the category to which it belongs.

We can also ensure that Suggested Categorization  is disabled in the bank transactions: Follow these steps: 

1. Go to Bank Transactions. 
2. Click the Small Gear icon. 
3. Uncheck the box for Suggested Categorization. 

Additionally, let me share this article to guide you on creating bank rules for your transactions: Set up bank rules to categorize online banking transactions in QuickBooks Online.

I'll be here if you still have questions about your bank transactions. We'll be here to assist you 24/7. Have a great day, and take care always.