How do I enter my KTN after flight tickets purchased?

[tracieallender]

I have already purchased my flight but did not have my KTN at the time.  I have it now, how do I enter it for my ticket?

[KevinD]

@tracieallender I would recommend either contacting your company's travel agency or the airline directly to get it added to your ticket. I'm not sure if adding it to your frequent traveler profile with the airline will add it to existing reservations, so I would contact either of the two parties I mentioned.