What is BD?

BD = Business Decline. This indicates to the employee that there is no firm shift end time.

Here's an example to show how BD works in 7shifts:

In this case, you are scheduling Tim Rosehill from 5pm-BD.

Employee Perspective
From Tim's perspective, he is working at 5pm and will be sent home when things slow down, with no specified end time.

Admin/Manager Perspective
Since you have entered 9pm as the shift end time, you will get an approximate labor cost for this shift.  

You still enter a shift end time in order to get an approximate labor cost for this shift. Don't worry, the shift end time is not visible to the Employee.