You may have created an opportunity or just been added to one by someone else. When working on the opportunity, help may be needed, or you may want to add someone to watch.

To do so, you will need to add other Cloud users as resources to the opportunity.

To add an existing Cloud user as a resource, click the "+" button at the top right corner of the Opportunity Details view.

Now, you will see a modal to add users and resources and assign them to the opportunity. You may see yourself as the owner, or you may see many people if others have already been assigned.

Select the user and click "Assign" to add an existing Cloud user.

If you want to invite a new person to your Cloud account and assign them tas a resource to the opportunity, click "Invite user."

You will see the Invite User workflow and need to complete it.

Check out this article for more details.

If you want to remove a user who is assigned as a resource in an opportunity, click the "+" button at the top right corner, and unselect the user.