You can add people to groups and project roles to more easily manage what products they can access and permissions they have. 

Assigning groups

For more information on default groups and Atlassian Cloud permissions, check out Create and update groups

Assigning project roles

For more information on creating project roles, assigning groups and users to a project role, and managing project role membership in a project, check out Managing project roles.

Assigning application access

For more information on setting up default applications and managing access, check out Update product access settings