To make the search easier, we're going to filter Activity Feed by cancelled registrations. First, click the "All Item Types" filter.

Select the "Cancelled registrations" field.

Head to the cancelled registration you'd like to check. Under the log, you'll see the name of the person who unregistered and where they cancelled from. In the example below, Blair Abercrombie's spot was cancelled by staff member Vicki Morillo via the Business Dashboard.

Check who unregistered a customer in the Activity Feed