Hi @agustin91dc,
Welcome to Box Community, and we’ll be assisting you with your pending invitation.
To fully access the shared content, please accept the invitation. To do so, please follow the instructions below.
To find and resolve a pending invitation:
- In the left menu of your Box account window, click All Files.
- In the pending invitations panel under ACTION REQUIRED, hover on the name of a file or folder.
- To see details about the invitation, click the ellipses, "...", and select View Details.
- To decline the invitation, click the ellipses, "...", and select Decline All.
- To accept the invitation and gain access to the project's content, click Accept.


Hope it helps, and please don’t hesitate to reply if you have additional questions.