For this activity to happen, the project must already exist and the userid must already exist within the enterprise.
Projects - Choose the project to which you want to assign the user.
Users- Choose the user from the list box, whom you want to assign to the selected project.
Effective Start Date - The start date of the user in the project.
Effective End Date - The end date of the user in the project.
Assign - Click on Assign button.
Repeat the above steps to assign more users to the project.