Hello again EvieKat,

As Rochelley mentioned, the screenshots and steps I provided are for QuickBooks Desktop. QuickBooks Online's Projects feature is available in Plus-level accounts, as you've discovered and allows you to easily track invoices and other project-related transactions in one place. We've recently updated Projects by giving it a new layout and the ability to change the status of the Project, but there isn't a spot for deadlines just yet. It's a great idea that I'll be sure to pass on to the product development team. In the meantime, the Notes option could be used to supplement this need. Here's a screenshot of what I mean.

I'm sad to see you leave QuickBooks Online, but encourage you to do what's best for your business. It's important to find the right fit for your needs.

Take care!