I need to speak with an expert in QuickBase to discuss this. Quick turn project and roll-out.
Quickbase is a cloud based collaborative database where your data is immediately available to all permitted users after the data is created or modified. You can think of this as real time. However if you want some type of messaging or notification to all users there are various product features such as email notifications, connected tables and the upcoming Web Hooks feature. Beyond these native capabilities you can do all sorts of custom event processing using script and various APIs (including Service Workers). I am an expert in all of these technologies so fee free to contact me using the information in my profile.
I think that Gabe is asking an integration question to QuickBooks. Gabe, is that your question? You may already be aware that QuickBase can natively do a 1 way Sync from QuickBooks down to QuickBase on request or every hour. If you need real time, then please contact me via the information in my profile and I can give you some recommendations on Partners who do that work well.