3822464 - Email from Tripit, please verify that you are a designated travel arranger

The Tripit "add travel plans by Travel Arranger"  feature is not working as expected.  A Travel Arranger forwarded a copy of their Manager's hotel reservation to Plans@Tripit.com.  She expected that both the Arranger and the Manager would have a copy of the hotel reservation in each of their Tripit accounts.  The trip did not populate in the Manager's Tripit account and the Travel Arranger received this email:  

Travel Arranger received email from TripIt while trying to add travel plans to their authorized traveler's TripIt account which said: check out your TripIt itinerary. We noticed you included an email address in your subject line. If you are forwarding on behalf of another TripIt user, please verify that you are a designated travel arranger. , KBA , CON-CA , Cross Applications , Problem