Members of the organization's ArcGIS Enterprise Portal can collaborate on a site's core team by adding and creating content for the site and designing its layout.
What is a core team?
A site's core team is a group that's automatically enabled with the update capability. This means that any member of the group (people added to the core team), can edit items shared to the group.
By default, all new sites and pages are shared with the core team group so that group members (core team members), can make edits to these items.
Core team members are also automatically added as members of a site's Content group. The content group is not enabled with the update capability, so team members can only add, edit, and remove their own items.
Who can I add to a team?
You can add any member of your organization's ArcGIS Enterprise Portal to a core team. See Configure roles and privileges for the recommended user type, role, and privileges for core team members.
What if my site is missing a core team?
If a site is missing a core team, the person who originally created the site didn't have the administrative privilege to create groups with update capabilities or the core team group may have been deleted. Contact an administrator and request that they open your site in edit mode, click Teams in the second drop-down menu, and follow steps provided on the page to activate the core team. Alternatively, an administrator can assign the appropriate privileges to the person managing the site so that they can activate the core team on their own.