Having just come from the land of Xero, I'm disappointed that variables aren't a part of QBO. That said, I am enjoying the really neat feature where I can automate sending of invoices AND have it actually work. Very novel and a major reason for leaving Xero. That said, ***please, please add the ability to use variables asap***. Now I have to go and figure out how to make my invoicing work without it. We really shouldn't have to try to find workarounds for what should be considered basic functionality.