This event is raised when a recipient fill a collection form.
Additional parameters :
- string CampaignName, Campaign name (It is the TID provided at send time)
- string FormName, Form name provided at send time
- List<KeyValuePair> Data, data entered by the recipient on the collection form. The data is stored as KeyValuePair, the key is the name of the field in the form and the value is the value entered by the recipient