Core Contributors are the people closely associated with your Collective, who will show up on your Collective page as part of the team.
Collective Admins are Core Contributors with extra permissions, like editing the Collective settings and approving expenses. Admins get notifications of activity on your Collective.
Go to your Collective page and click the gear next to your Collective logo.
2. Head to the Core Contributors tab. Here you can add, remove, or change people and roles.
3. Once you are done, click on Save at the bottom of the page.
4. Users will receive an invite to join the Collective. They will not be displayed publicly until this invitation is accepted.
If someone indicates that they didn't receive an invitation email, the first thing to do is for them to search for the keywords "Invitation to join" in the target inbox, including in the spam folder. If they still can't find them, the easiest way to re-trigger the emails is:
Go to the settings page of the Collective > Core contributors section
Remove the concerned users
Click on Save
Click on "Add core contributor" and add them again (you should be able to search by pasting user emails in the search box)