The Location/Project field on the assignment can be used to identify which location the candidate is working on and is especially useful if the candidate has two concurrent assignments for the same client for different locations, so they are required to work across two sites:
If used, the Location/project information will be visible to the candidate when they go to select their timesheets on their portal:
And when they have selected their timesheet to enter information
This information is also visible on the timesheet image:
The Location/project is also available on Expense sheets.