If your needs for a project you are beginning change, you can go into the project information and edit those roles and requirements - up until you've invited talent to the project. To start - find the project you want to edit - from the homepage/dashboard, click on "Manage Projects".
Once there, find the project you want to edit roles for and select it. Once you're in the project, navigate to the "Brief" tab (first tab on the left). In the project information, you will see an option to update the start/end dates for the project. Below that, there are two additional tabs. The first one, the "Project Brief" tab, lets you edit information about the project, such as the name, description, timing, and location. The "Role Requirements" tab lets you edit the talent candidate roles and requirements.
On the "Role Requirements" tab, you can navigate between roles that have been added to your project with the arrow buttons near the top of the page. When you find the role you want to edit, scroll down to edit options like rate, job description, experience level, skills, and more. Once you've made your changes, click the "Update Role" button at the bottom of the page.