Before contributing an Activity to Collaboratory, use the Search feature to see if one of your collaborators may have already added it. You may also consider coordinating with your collaborators to make sure only one activity is created.
If a collaborator does contribute your shared Activity first, (s)he may have identified you as a Faculty/Staff Collaborator, in which case you would receive an email notification.
In the event that a duplicate Activity gets created, it is likely to be flagged as part of the moderation process. You may also contact your Collaboratory Administrator with questions.