You can bulk edit the transactions you want to assign to a certain customer and category, Peter.
Here's how:
- Hover your mouse over My Apps, then Accounting, and then select Bank transactions.
- Tick the check boxes for the transactions you want to assign to the same Vendor or Customer and the same Category.
- Click the Edit option at the bottom.

- Select the Vendor /Customer name and Account.
- Hit Apply.
Return to the Pending tab and repeat the steps for other transactions you want to assign to a different Vendor or Customer and Category.
Moving forward, when you download bank transactions, you can then categorize them into the correct accounts. Bank rules can automate this process. Over time, QuickBooks Online learns from the rules you create and gets better at categorizing transactions, automatically adding details as it recognizes patterns.
Here is an article you can read to guide you in creating bank rules: Set up bank rules to categorize online banking transactions in QuickBooks Online.
Leave a comment below if you have additional questions about managing transactions in QuickBooks Online.