Be in business
Definition 1 of 2
Pro Tip 1/3Startup Cue
Indicates a business has completed setup and is now functional. 
Once the website goes live, we'll be in business!
Pro Tip 2/3Positive Announcement
Used to express enthusiasm about a venture's readiness. 
Our permits are approved, we're in business!
Pro Tip 3/3Operational Status
Confirms that normal operations can or have resumed. 
After the power outage, lights are on, and we're back in business.