Thank you for checking in with us, @mmankin. 

I can provide you with some information about setting up your vendor profiles in QuickBooks Online. 

I understand how important it is to include many addresses for each vendor so that you can operate more efficiently. We don't know when this feature will be available in QuickBooks Online for the time being (QBO).

Our engineering team is aware of this and is trying to include it in the next update. In the meanwhile, you might want to hunt for third-party software that provides the features that your company requires. You can look for an app that integrates with QBO in our QuickBooks App Store. Alternatively, you can seek an app under your QBO account's Apps menu. 

Additionally, you can always check our Income and expenses page for future reference. There, you can read and learn some best practices in managing your expenses efficiently.

In case you have any other questions, you're always welcome to post here anytime. I'll be sure to answer them for you. Have a great day!