Why can't I add a Guide to my Itinerary?

If you are a Signature user, you'll have one additional step before searching for your guides.

Select a traveler with name and email. If no email displays, add the email to the traveler profile.

If you have an email address attached to your traveler profile, you can use your traveler profile, every time you look for guides for your itineraries. 

Add your guides.