You can add collaborators using their email addresses or name (which will come as auto-suggest if you’re already associated to the person in any way on zipBoard).
If you’re the Owner of the organization (for enterprise customers) or have created the project, then you have the privilege of removing anyone from it . You can access the option to remove once you click on Collaborators tab. You can read more about project privileges here.
Zipboard is all about communicating; so you are provided with multiple options for that:
On adding any of your teammates as a watcher to any of the tasks he/she will receive all notifications regarding any updates to the task. Thus if wish anyone in particular to stay informed about some task then you can add him/her as a watcher to the task.
To add someone as a watcher simply click on the on the textbox next to watchers tab and select the collaborator from the dropdown and you are done. You can add multiple watchers to the same task if desired.
Make sure the email address, you are invited with is the same as the one with which you are trying to access it.Other possible reason might be that the owner has archived the project or might have exceeded the number of projects limit. Also,might be for some reason either the project is deleted or you may have been removed as a collaborator for the project.