The best method to ensure you're matched in the most efficient and enjoyable carpool is to schedule a carpool prior to the scheduling deadline. This allows the Scoop algorithm to consider a number of factors for each potential match including proximity between commuter, added trip time, what company you work for, and past trip experiences. Read more about how Scoop builds matches in this blog.
If you're a Driver and did not schedule a carpool prior to the scheduling deadline, you'll be able to manually create a carpool by using The carpool shortlist.
Note: The carpool shortlist is currently unavailable for commuters using shift scheduling. Shift scheduling is only available for commuters whose employers are a part of a specific Scoop Program. If your employer is a part of a program offering shift scheduling, you will see it within the Scoop app.