How can I give access to an addional admin

[keeunit]

I have created new projects in the Adobve Dev Console. Now I wanted to give access to the Dev Console to other Admins in our organization. Although one of my colleagues is has the role System Admin he is not able to join my created projects. How can I give access to an addional admin?

[devconsole]

All user permissions are managed in the Adobe Admin Console (https://adminconsole.adobe.com) and the documentation can be found here. 

Projects and credentials are owned by the organization as opposed to individual users. As such all System Admins have access to all projects/credentials in the Developer Console. Developers have limited access based on the access that was granted to them. Management of Developers can be found here. 

Please confirm that your colleague and you are logging into the same organization and both have System Admin privileges. If you still see a problem, please send me a DM with the name of the org, the orgID and the emails of the two system admins so I can check internally