I use Bill.com with Quickbooks online. One of my vendors changed banks. How do I change or update their bank account information in Bill.com for bank transfers?

Let's update the vendor's bank account information, @sean62.

We can go to the Vendors page to update their information. Just log in first into your Bill Pay App account. Then, follow the steps below: 

1. Under the Payables section, click Vendors.
2. Click the vendor name you would like to edit.
3. Tap the More actions drop-down and choose Edit Vendor.
   
4. Edit the vendor's information
5. Tap Save.
   

For more details about updating vendor's banking information, check out this article: Add, edit, delete, or restore vendors. 

To learn more about Online Bill Pay for QuickBooks Online (QBO), refer to these articles:

• What is Online Bill Pay?
• Pay bills in Online Bill Pay

Please come again and place a comment if you have other concerns with managing your vendor's banking details or any QuickBooks-related questions. I'm always ready to help you. Have a great day ahead!