Many Planners can coordinate on a Trip at the same time as Co-Planners, but only one of them can be the Owner.
All Team Members are Co-planners on the team trips, but Co-Planners can be added to individual trips as well. So not all Co-Planners are Team Members.
What is the difference between co-planners who are added to a trip because they are part of your team vs. a co-planner added to an individual trip?
Co-planners added to individual trips:
CANNOT edit the information of the cost for your trips.
Here is the view this co-planner will have (note there is no Costs Tab under Update Trip):
CANNOT be sent test emails from the planner
CANNOT push to Xero
To Note: Co-planners can still see traveler payments information.
FAQ: Ready to add one, but not sure how: How do I add a Co-Planner?
The Co-Planners that are added when a Trip is created are shown in the Activity Log at the very bottom. All members of a Team are automatically added to Trips created by any other team member.
When a Trip is copied, Co-Planners are also copied. So double check your Activity Log after creating your trip to be sure you've got the right Co-Planners.
By default only the Owner's contact information is displayed as the Contact on the Trip Page.
However (As of Release 1.50) any Co-Planner can also be:
Listed as a Contact on the Trip Page
Available as an option for sending messages from the Planner view