According to the Constituents guide, “When a constituent is registered for an event, the constituent receives the event registrant constituency.” That effectively means that the date it was added to CRM because registrations cannot be backdated like revenue and the constituency cannot be modified on a constituent's record. My organization would like the ability to edit the constituency on constituent records. Along that same line, it would be good if event registrations could be backdated, similar to changing the date on a revenue record.