Do you ever wish you could assign a single task to more than one user in an application? Or choose several users to take on the role of project lead? With the list-user field type, you can design apps that let you do just that.
List-user field dropdowns are populated by the users in the default set (or custom set, if applicable.) (Read more about the default and custom user sets.)You can see an example of a list-user field dropdown for the field named "Team Members" below:

Users in a list-user field are sorted alphabetically by first name. You can search for users in the list by typing any portion of the first or last name.
You can select up to 10 users in each list-user field. You can also choose to select a user who is not currently on the default or custom set. If you choose to select another user, QuickBase displays the User Picker, allowing you to search for:
all QuickBase users
users in your company
other application users (optionally)
QuickBase groups to which you belong
For the most part, you can use list-user fields in the same way you use regular fields. You can filter reports, email notifications, and email reminders using these fields. You can sort and group reports by list-user fields. (See How to filter records using list-user fields.)
You can also use list-user fields as lookup fields when you create a relationship or cross-application relationship between tables.
In some areas, QuickBase does not currently allow the use of list-user fields. These are:
conditional dropdowns
summary fields
shared multiple-choice fields
key fields