Can I change a vendor bank account number

Welcome to the Community forum, @rallen1.

Yes, you can change the vendor's bank account number from the Vendor Information section. Let me guide you how.

1. Go to the Expenses at the left pane.
2. Select Vendors.
3. Look for the vendor's name, then click it to open.
4. Click Edit beside New transaction.
5. Under the Vendor Information, update the bank information under Account no.
6. Hit Save to save the changes.

To learn more about managing your vendors in your QBO account, you can check this article for reference: Vendors overview. From there, you'll learn the basic practices of managing your vendor transactions.

Also, I'm adding this great article that provides detailed information in case you want to merge your accounts and vendors: How to merge accounts, customers, and vendors.

Please post again if you need more help with this. Have a great day!