How can I change the site admin who is already retired?

[Minami Morino]

Currently the site admin is set as a member who is retired and whose email is not active.

How can I change to the active member?

[Mayur Jadhav]

Hello @Minami Morino ,

Welcome to the Atlassian Community!!

Please follow the below instructions.

1. Go to your site's Admin at admin.atlassian.com. If you're an admin for multiple sites or an organization admin, click the site's name and URL to open the Admin for that site.

2. Select Groups from the left side of the page.

3. Select the site-admins group.

4. Click Add members, search and select the people you want to add, and click Add.

Note: only Organization Admin and Site Admin can add members to the Site Admin group.

For more information how the access works you may please have a look at: Give users admin permissions.

Regards,
Mayur Jadhav
Please do not forget to hit accept button if provided information was helpful.

[Minami Morino]

Dear Mayur Jadhav

Thank you for your instructions. I could check site-admin.

The retire member is set as org & site admin, is it possible delete her from the site admin group? 

[Mayur Jadhav]

Yes, if you have same privileges as previous user then you can deactivate his account and even you can remove him from Group. Ideally deactivating the account is more than enough.