If a channel is linked to a Google+ page, then multiple people can manage the channel without sharing passwords. For someone to manage the YouTube channel, they must be listed as a manager of the linked page.
- Only the owner of the Google+ page can add or remove managers. Sign into the page owner Google Account.
- On YouTube, make sure you pick the right channel. Then go to the channel's account settings and click Add or remove managers.
- To add a manager, enter the email address of whoever you want to be a manager. Click Invite. Once they accept the invitation, they’ll then be able to access that channel from their own Google Account.
To remove a manager, find the manager you want to remove, and click the X by their name. They will no longer be able to access the channel from their Google Account.
Note: Communications managers have limited access to YouTube and can't upload YouTube videos. Learn more about roles on Google.