Originally Posted by
thebyte
In my case I had to call Southwest and add my middle name to my RR profile to get pre check to work. It is not editable online.
This
When my wife and I got our KTNs we both had to contact SW on the phone and have our RR info changed to reflect our middle name (as on the TSA Pre) as opposed to middle initial in RR.
Neither of us has had a problem with it since then