Team members may encounter a project limit if they try to create a prototype or board on their personal account rather than the Team plan. To create a prototype or board on a Team plan, check out the article How do I create a prototype on a Team plan?
Note: If you create a prototype under the Team plan, you will notice that—rather than you owning the prototype in your personal account—the prototype belongs to the Team plan owner by default. This is to ensure that all members of the team can access the prototype via the Team account.
Existing prototypes can be manually transferred to the team at anytime. The team member will need to enter the team owner’s email address when performing the transfer.
To access your team's prototypes or boards, navigate to the Projects tab. Click the My Projects drop-down, and click the appropriate team.
Return to your personal projects by clicking the drop-down again and choosing My Projects.